Repair Ntdll.dll Error Code

Ntdll.dll Error - What is it?

Ntdll.dll is a type of DLL (Dynamic Link Library) error. DLL errors are some of the most common but complicated errors to troubleshoot and resolve by PC users. The Ntdll.dll error message is displayed in the following formats:

• "STOP: 0xC0000221 unknown hard error C:WinntSystem32Ntdll.dll
• "NTDLL.DLL Error!"
• "STOP: C0000221 unknown hard error SystemRootSystem32ntdll.dll"
• "[PROGRAM NAME] caused a fault in module NTDLL.DLL at [ANY ADDRESS]"
• "AppName: [PROGRAM NAME] ModName: ntdll.dll"
• "Crash caused in ntdll.dll!"
• "Unhandled exception at [ANY ADDRESS] (NTDLL.DLL)"

You may come across the ‘Ntdll.dll error’ pop-up either when you try to run a program or after using it or while the program is running. It may also appear when Windows starts or shutdowns or even during Windows installation.

Solution

Error Causes

The Ntdll.dll error code can be triggered due to numerous reasons such as:

• DLL file corruption due to hard drive bad entries
• Missing DLL files
• Corrupt hardware drivers
• Viruses
• DLL file misconfiguration

It is recommended to resolve this error code immediately on your PC to avoid inconvenience and serious PC damages like program lockouts, system failure, freeze, and crash

Further Information and Manual Repair

All the causes for ‘Ntdll.dll’ are linked with the registry. The registry is the main database of your system. It saves all the activities and files on your PC including the important data file and unnecessary files such as the junk files, temporary internet files, and obsolete files, files of the programs installed, bad entries, invalid registry keys, and cookies. These files take up also hard drive space thereby causing dll file damage, disk fragmentation, and data overload. Ntdll.dll error may also occur to due viral infection and malware attack. There are 2 ways to resolve the Ntdll.dll error. One is to install 2 separate tools, the registry cleaner, and antivirus, and run them separately to scan for errors. This option is time-consuming and running an antivirus can also slow down the speed of your computer. Therefore we recommend that you opt for the second alternative that is to download Restoro.

Why Restoro.

• This is an advanced, innovative, and multi-functional PC repair tool embedded with several powerful PC repair utilities like a registry cleaner, an antivirus, and a system optimizer. This is a one-stop solution for all your PC errors.
• It is user-friendly, safe, efficient, and compatible with all Windows versions. The registry cleaning feature scans for all registry issues.
• It wipes out all the unnecessary files from the hard drive, repairs the damaged dll files, and restores the registry, thereby resolving the Ntdll.dll error code right away.
• The privacy error utility functions like an antivirus. It detects and removes all the malicious software like viruses, malware, Trojans, and spyware. Simultaneously, the system optimizer feature boosts the PC speed.

Click here to download Restoro and resolve the Ntdll.dll error on your PC today!

A fast Guide to Fixing 2GB filesize Error

What exactly is the 2GB filesize Error?

The PST file could be around 2 gigabytes if you are using MS Outlook 2002 or any earlier versions for your own personal Folders. The 2GB filesize malfunction occurs when your PST memory both reaches or exceeds this limit. The 2GB size problem code is, in addition, referred to as an outsize PST file error. When this error happens you may be unable to deliver or receive e-mails via your Outlook account. Moreover, you'll likewise not be able to add any new data or even view your important calendar items, notes, and saved drafts. MS-Outlook shows several types of problem codes which indicate the 2GB file size dilemma. Listed below are some of the messages that can be displayed on your monitor:-

• The file could not be added to the folder. The action could not be completed.
• Task 'Microsoft Exchange Server - Receiving' reported error (0x8004060C): 'Unknown Error 0x8004060C'
• Can't copy the item
• Errors have been detected in the file xxxx.pst. Quit all mail-enabled applications.
• Task 'Microsoft Exchange Server' reported error (0x00040820):'Errors in background synchronization. In most cases, further information is available in a synchronization log in the Deleted Items folder.'
• xxxx.pst cannot be accessed - 0x80040116

Solution

Error Causes

The simple explanation for this malfunction is that you have maxed out the two gigabytes account limit. This happens in case you continue downloading fresh data and saving files and the old emails in your Outlook account. Over time, the space becomes limited and along with it the 2 GB file limit error. This error also presents a critical danger of data loss which is a possibility in your Outlook account, which hinders you as well from fully utilizing your email account. For regular Outlook customers, who utilize this program for practically all email communication within as well as outside the office, this error is annoying and frustrating as it causes a great deal of annoyance as well as decreases their performance and productivity.

What exactly are the Symptoms?

Below are a few signs that will help you recognize the 2GB file-size error:

• Inability to fill and open the OST and PST files
• Error messages pop-ups
• Failure to send emails
• Failure to make or edit new contacts
• Inability to synchronize the file

Further Information and Manual Repair

It is desirable to fix this error code right away especially if this is the preferred strategy to carry out communication in your office. Fix it immediately or else you might not receive e-mails that are important from your colleagues. There are 3 ways to solve this issue.

Method 1

One is to remove the old e-mails and connections and replace them with new ones. This may not be the best option for you in case you don't wish to lose emails and your old contacts.

Method 2

The second alternative would be to install a fresh version of MS-Outlook like 2010. The file-size limits of OST and PST files in these editions are larger than in ms-outlook 2002. On the other hand, this is a good idea for the long run but may not be the best idea for today as you will not have the ability to recover your previous e-mails and contacts that are outdated.

Method 3

The third and maybe the method that is best to resolve the 2GB file size limit error while ensuring the restoration of your old e-mails and contacts as well as increasing the limit to 4GB, is Restoro program's installation. Here may be the best recovery program on the market. It is really easy to use, safe, exceptionally functional, secure, and especially can resolve this issue. Technical expertise isn't needed by you to perform your way around this device.

All you should do is:

Click here to download and install the Restoro repair tool on your computer. In your MS Outlook account, you can restore all your data in just a couple of clicks. Talking of data recovery, this software can also help you recover all those other e-mails before the PST malfunction happened, or that you may have deleted. So, if you have deleted any significant email that you want to recover, this will undoubtedly be of use for you. By installing it on your system you can double your Outlook account's quality to twice as much as the standard size.

Error Code 0xc0000142, What is it?

Error code 0xc0000142 is an error code that affects Windows 10 users. It often occurs when users attempt to run Windows applications. The message in the application error box allows users to recognize the error as it states that “the application was unable to start correctly (0xc0000142).” Common symptoms of this error code include the following:

• Inability to start applications
• Inability to completely run Windows applications
• The appearance of error code 0xc0000142 message box

Error Causes

Error code 0xc0000142 in Windows 10 is often caused by issues related to startup programs, corrupted files or other applications. To address this issue, the source of the issue needs to be located. But how will users be able to do this while the error code is present?

Further Information and Manual Repair

To fix error code 0xc0000142 users will need to employ at least one manual repair procedure. This may include checking your system for corrupt files through tools like Microsoft’s System File Checker (SFC). If you are uncertain of your skills or prefer to get professional support, contact a Windows repair technician to assist you.

The top three methods to resolve error code 0xc0000142 include the following:

Method One: Perform a Clean Boot

A clean boot is one of the most basic procedures you can run to solve a Windows-based error code of this nature. It works by identifying whether or not conflict among startup programs is preventing Windows applications from running properly. This occurs through a clean boot process involving Windows using a minimal set of drivers and startup programs when you reboot.

Here is what you’ll need to do:

• Step one: Go to Start and type msconfig
• Step two: Right-click and select System Configuration
• Step three: Select Service tab and click Hide all Microsoft Services then click Disable all.
• Step four: Click Startup tab within the System Configuration dialog box.
• Step five: Select Open Task Manager
• Step six: Within the Startup tab of Task Manager, select Disable for each Startup item, then close Task Manager.
• Step seven: Click OK on the Startup tab of System Configuration.
• Step eight: Restart your computer.

This method resolves software conflict arising when you attempt to update, run a program or simply use your operating system. However, if error code 0xc0000142 remains unresolved after you restart your machine, follow the next step below.

Method Two: Run a System File Checker Scan

System File Checker (SFC) is a utility tool built into the Windows 10 operating system, as well as other versions of Windows, to detect and repair corrupted system files. Since corrupted system files can result in error code 0xc0000142, run this tool by following the steps below:

• Step one: Go to Start and type Command Prompt or CMD.
• Step two: Right-click and select Administrator
• Step three: Check for and repair corrupted system files. Simply type sfc /scannow. (Be sure to place a space between “sfc” and “/scannow”).

Once these procedures are followed, the System File Checker tool will automatically scan your machine, and find and repair corrupted files. If this is the source or underlying cause of error code 0xc0000142 on your system, the error code will be resolved. However, if the source of the issue is not due to corruption in our system or is simply a more complicated issue try the next method highlighted below.

How to Fix Error Code 0x800ccc92

0x800ccc92 - What is it?

Do you come across this error message “Receiving’ reported error (0x800ccc92): “Your e-mail server rejected your login”? Verify your user name and password in your account properties. The server responded: - ERR invalid user names and password” when you try to send or open emails using your Outlook account? If yes, then this article is a must-read for you as we explain why this error occurs and how you can resolve it. To begin with, 0x800ccc92 is a common Microsoft Outlook error. This error restricts your ability to send and receive emails on your Outlook email address. In other words, it locks you out and hampers your ability to use your account successfully causing a great deal of inconvenience especially if you use your Outlook account for communication in and across your office.

Solution

Error Causes

The 0x800ccc92 error message may occur due to numerous reasons so narrowing it down to one particular reason for occurrence is not easy. However, here we have listed down some of the most common causes of this error code:

• Incorrect Outlook configuration settings
• Invalid password or username
• PST file crosses its fixed file size limit
• Failure of POP3 and Protocol STMP in database server connection
• Improper synchronization between Outlook and the server
• Virus Infection
• Invalid registry entries

Further Information and Manual Repair?

To fix the error code 0x800ccc92 on your system, here are some quick, effective, and easy DIY solutions that you can try:

Solution 1:

Sometimes the error code may occur due to an invalid password and usernames entry. Therefore, first, cross-check user ID and password. If you’ve entered the wrong password, try inserting the correct password to access your account.

Solution 2:

If the error still persists, then try installing the latest available Server Service Pack for Exchange. This solution works best if compatibility is the issue and the underlying reason for the error is improper synchronization between Outlook and the server.

Solution 3:

The presence of malware and viruses can also lead to such errors. Therefore, it is advisable to scan your entire PC for malware and viruses using a powerful antivirus.

Solution 4:

If the issue occurs due to bad and invalid registry entries, then it is important that you remove them right away. Due to such entries, you may experience the 0x800ccc92 error on your PC. To remove them, you need to download a registry cleaner. Downloading two programs an antivirus and a registry cleaner separately may slow down the speed of your PC. Therefore, to ensure this does not happen it is recommended you install Restoro Restoro is an advanced and multi-functional PC Fixer. This software is deployed with an intuitive algorithm and multiple powerful PC repair utilities including a registry cleaner, anti-virus, and a system optimizer. It is a one-stop solution for all PC-related issues. Using this tool, you can scan your entire PC and remove all types of malicious software including malware, viruses, spyware, and Trojans corrupting your PC in seconds. Simultaneously, it also removes all bad registry keys and entries and files the damaged system file, thereby restoring the registry back to normal. The system optimizer utility ensures your PC speed is not compromised due to the repair process. This software is safe, bug-free, efficient, and user-friendly. It is compatible with all Windows versions. Click here to download Restoro on your PC to instantly remove viruses and invalid registry entries to resolve the 0x800ccc92 error message on your system now!

Error Code 80073712—What is it?

Error code 80073712 is one of the dozens of error codes affecting Windows 10 users. It occurs when users attempt to upgrade their operating system but experience a failure. The error code usually results from problems associated with missing or damaged files within Windows Update. Common symptoms of this error code include the following:

• The inability of Windows Update to successfully complete the upgrade process
• Message box highlighting the presence of error code

Solution

Error Causes

In the case of error code 80073712, the issues preventing Windows Update from completing the upgrade process are most likely due to problems with files within Windows Update. For instance, there may be corruption within the Component-Based Servicing (CBS) manifest.

Further Information and Manual Repair

Manual repair methods offer solutions to Microsoft users who are experiencing Windows error codes like the upgrade error code 80073712 in Windows 10. The manual repair methods in this article are not guaranteed to fix problems unrelated to this error code. Thus, be certain you are experiencing error code 80073712 before you attempt to implement the solutions provided below.

Method One: Run Windows Update Troubleshooter

Since issues related to Windows Update may be causing error code 80073712 to occur, one of the best solutions you can consider is to run the Windows Update Troubleshooter. This troubleshooter will be able to detect and fix corruptions within Windows Update files or any other issues directly related to Windows Update. To implement this manual repair method, follow the steps listed below:

• Step one: Open your Internet browser
• Step two: Type www.microsoft.com/downloads
• Step three: Type Windows Update Troubleshooter in the search bar at the top-right corner of the Microsoft website.
• Step four: Select Windows Update Troubleshooter then wait for the webpage to load.
• Step five: Select Run troubleshooter

Once you run the troubleshooter, you should be able to verify and fix any errors within Windows Update files. Restart your machine after the troubleshooting process is complete them proceed by checking Windows Update to see if you are able to complete the upgrade. If Windows Update downloads the upgrade and the installation of the upgrade occurs, the problem has been resolved. Otherwise, error code 80073712 will reoccur, in which case you will need to move to manual repair method two.

Method Two: Run DISM Tool

Another option available to Windows users experiencing error code 80073712 is to download and run the Deployment Image Servicing and Management (DISM) tool. This tool checks for inconsistencies or corruptions that may be preventing Windows Update services from functioning correctly. To download and run the tool, follow the instructions below:

• Step one: Type Command Prompt in the search box near the Start button
• Step two: Right-click Command Prompt, then click Run as administrator, providing administrator password or confirmation where necessary.
• Step three: Select Allow
• Step four: Press Enter after typing the following command:

DISM.exe /Online /Cleanup-image /Restorehealth

Wait a few minutes to ensure that the process is complete. Once you’ve run the DISM tool, it will detect errors, for instance within registry data, and correct or replace them. Restart your machine after running this tool then check Windows Update. Attempt to download the upgrade to see if you have successfully resolved error code 80073712. If you experience an upgrade failure, move to the next manual repair method mentioned below.

Method Three: Perform a Clean Install of Windows 10

The issues related to error code 80073712 may also be resolved by performing a clean install of Windows 10. This manual repair method ensures that any previous versions of your Windows operating system are removed before you attempt to access an upgrade. This can prove effective as it helps users avoid issues that would otherwise cause error codes or poor PC performance in cases where errors are present on one’s system.

To successfully perform a clean installation of Windows 10, be prepared to follow step-by-step procedures that include the following:

• Step one: Download and run media creation tool
• Step two: Click Run, then select Create installation media for another PC
• Step three: Select changes to the installation options, then select Next
• Step four: Choose USB flash drive or ISO file, then click Next
• Step five: Select drive, then Next
• Step six: Select Finish, then restart your computer, ensuring that the media option you choose, whether USB flash drive or DVD, is in your machine before you choose to reboot.
• Step seven: Press any key then follow the prompts provided to set up Windows 10.

Method Four: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.

In their search for making Windows, a better operating system Microsoft has come up with an insider program that will collect telemetry and send it to Microsoft in order to provide enough information to make a better OS. Being in an insider program is per choice basis and it is not forced to anyone. This guide will cover how to turn off the insider program since its constant updates and telemetry can slow down the internet. So if you decided that you no longer want to be part of this program here is how to turn it off.

• Press ⊞ WINDOWS + R to open the run dialog
• Type in dialog gpedit.msc and press ENTER
• You will find yourself in the Local Group Policy Editor Window. Inside windows find: Computer Configuration > Administrative Templates > Windows Component > Windows Update > Windows Update for Business
• Move to the right pane and double-click on the Manage Preview Builds option
• Inside the Manage Preview Builds window, check the Enabled radio button
• Go to the Options section, and using the drop-down menu, set the preferred release channel
• Select Apply and then OK

QuickLook app is one of the best options to preview files without opening them in Windows 10. It works similar to the Quick Look feature of macOS. This Microsoft Store app has some really interesting features. It lets you preview images, documents, and media files. Also, just a hotkey is needed to preview the content of a file. There is no interface for the app. Only a preview window is visible. You can also expand the preview window to full size. Apart from that, it lets you keep the preview window on top of the other opened applications. For image files, it also provides the EXIF data. After installing this app, just select some file that you want to preview, and press the Spacebar key. That’s it! The preview window will open immediately to view the file content. If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

Prompted For A Product Key – What Is It?

Some Windows 7 or Windows 8/8.1 users are having a hard time upgrading to Windows 10 as they are being prompted for a product key. By default, the Windows 10 operating system does not require a product key and users should not be prompted for one, given you upgraded your computer from an activated Windows 7 or Windows 8/8.1 license or from the Windows 10 Preview build. However, there are some users encountering this problem and there are several reasons for this.

Solution

Error Causes

There are a few reasons why some users are being prompted for a product key when upgrading to Windows 10:

• Windows 7 or Windows 8/8.1 license is not activated.
• You’re upgrading to Windows 10 final release from a preview build.
• There are broken operating system files.
• Activation servers get overwhelmed due to the high volume of upgrades.
• The Windows 10 copy you downloaded does not correspond with the current Windows system you are upgrading from.

Further Information and Manual Repair

Before you can fix this problem, you need to know why you’re being prompted for a product key. Some things you should know about Windows 10 product key activation are the following:

• You cannot activate Windows 10 using your Windows 7 or Windows 8/8.1 product key. Windows 10 has a unique product key.
• Error codes such as 0x8007232b, 0XC004E003, 0x8007007B, or 0x8007000D might pop up during system upgrade especially when the activation servers get overwhelmed with the high volume of upgrades.
• You don’t really need to know your Windows 10 product key.

Now, if ever you’re prompted for a product key when you’re upgrading to Windows 10, you can apply the following methods:

Method One: Give It A Few Days

If you’ve been prompted for a product key upon upgrading to Windows 10, you should click on the “Do this later” option. Wait for a few days then Windows 10 will get activated automatically.

Method Two: Download A Copy of Windows 10 Corresponding Your Current System

One of the reasons Windows users are being prompted for a product key when upgrading to Windows 10 is that they have downloaded a wrong edition of Windows 10 and do not correspond with your current system.

• Users of Home Basic, Home Premium, Windows 7 Starter, Windows 8.0 Core, and Windows 8.1 Core should download Windows 10 Home ISO.
• Users of Windows 7 Ultimate, Windows 7 Professional, Windows 8.0 Pro, and Windows 8.1 Pro should download Windows 10 Pro ISO.

NOTE: Users of Windows 7 Enterprise, Windows 8.0 Enterprise, and Windows 8.1 Enterprise are not eligible for the free upgrade offer.

Method Three: Ensure Windows Is Activated

If your Windows 7 or Windows 8/8.1 is not genuine or activated, you will get prompted for a product key. You need to make sure first your current system is activated.

1. Click on Start then right-click Computer. For Windows 8 and up users, you can simply press on Windows key + X then select Choose Properties.
2. When the Properties window appears, check if the Windows you’re running is activated.

Method Three: Reset License Status

1. Press on Windows key + X.
2. Select Command Prompt (Admin).
3. Once the command prompt window appears, type vbs –rearm then press Enter.
4. Exit Command Prompt then restart your PC.
5. Input the product key by following the instructions given.

Method Four: Force Activation

1. Press on Windows key + X
2. Select Command Prompt (Admin).
3. Once the command prompt window appears, type vbs –ato then press Enter.
4. Exit Command Prompt then restart your PC.

Method Five: Run System File Checker

Another thing you can try doing is to run the system file checker utility to scan if there are any broken operating system files. In doing so, you’ll be able to detect problems that might be preventing the product activation of your Windows 10 upgrade.

Method Six: Contact Microsoft Activation Center

If in case you’ve exhausted all your resources and you are still being prompted for a product key when upgrading to Windows 10, you can try contacting the Microsoft Activation Center for further details. Check here for the appropriate telephone numbers to contact.

Method Seven: Download An Automated Tool

If you still experience the error after doing the methods above, you might want to try a powerful and trusted automated tool to fix the job.

There are various complex tasks that take place under the hood while you upgrade or clean install the Windows operating system on a computer. Because of its complexity, there are times when you might encounter some errors when you upgrade or clean install Windows 10. One of the errors you could encounter is the error that states, “Windows could not prepare the computer to boot into the next phase of installation. To install Windows, restart the installation”. This error does not only occur in Windows 10 as it could also occur on the other versions of Windows. There are a lot of possible causes for this error. It could be due to incompatible BIOS, corrupted system files, improper installation media or it could also be due to excessive hardware plugged into your computer and so on. Whatever the cause is, here are some potential fixes you need to check out to fix the problem.

Option 1 – Try to disconnect or disable newly installed hardware

In this option, you will have to disable or remove the hardware you’ve just installed recently since external devices could be the one that’s causing the Blue Screen of Death error to appear. To do that, just disconnect any external device that’s connected to your computer physically and then check if it fixes the error.

Option 2 – Try to update the BIOS

As you know, the BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version in your computer.
• Now restart your computer to apply the changes made.

Option 3 – Try to reconfigure all the created partitions

You could also try to reconfigure the partitions by deleting and recreating all the available partitions on your computer and then see if it fixes the problem.

Option 4 – Make a proper bootable USB Drive/Stick

To make a proper bootable USB drive, you need to use the Windows Media Creation tool. The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.

• After making the bootable drive, you need to plug it into your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

Repair Error 421

What is the Error 421?

Error 421 is a common SMTP (Simple Mail Transfer Protocol) Outlook error message. MS Outlook is one of the best and popular email applications widely used by PC Windows users for sending and receiving emails within and outside workplaces. It is most commonly used in offices by professionals for faster communication. This error may occur while sending and receiving emails on the server. The error 421 messages is displayed in either of the following formats:

“An unknown error has occurred: Server error 421” "Could not send your message. Error 421" 421 4.2.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html 421 4.3.1 Out of disk space for temp file 421 4.3.2 All server ports are busy 421 Downstream server error 421 Fork failed 421 Greylisting enabled, please try later “An unknown error has occurred. Subject ‘Testing’, Account: ‘pop.charter.net’, Server: ‘mail.charter.net’, Protocol: SMTP, Server Response: ’421 Message rejected’, Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67”

Solution

Error Causes

Some common causes for this critical Outlook error are:

• PST storage size exceeds 2GB file size
• Improper ISP settings
• Slow internet connection
• PST file corruption
• Trojan attack and viral infection

This is a critical Outlook error that should be resolved timely. If you delay, it may cause you a great deal of inconvenience. The error code 421 hampers your ability to access your email account, send and receive emails, add new contacts, view emails, calendar entries, and journals. In other words, it just brings your email activities to a standstill locking you out of the account.

Further Information and Manual Repair

To resolve this error code on your system, you don’t always have to hire a professional or call the network personnel to do the job. It may be a critical error but the good news is that it is quite easy to fix. Even if you don’t have technical expertise, you can still repair it. Here are some of the best methods to repair this issue on your system:

1. Change the Server Settings to its Maximum Limit

Try changing your server settings. Here set the inbound connections limit at the maximum limit.

• To do this, open the Microsoft Exchange Server Administrator utility. The access path of this utility will vary depending on the installation procedure used to set up Exchange Server.
• Once you open the MS Exchange Server Administrator utility, click the ‘Connections’ icon in the left side navigation pane. Now double click the internet mail service icon in the right side pane. As you click it, the Properties window will open.
• Now click the ‘Connections’ tab in the Properties window and then click the ‘Advanced’ button. This will open the configuration window.
• Here reset the number for ‘Maximum Number of Inbound Connections’ to a high number, its maximum limit. After changing the settings, close all open Exchange Server Administrator program windows to successfully complete the process.

After the process is complete, try accessing your Outlook email account again; if it works, then that’s great the error 421 is resolved. However, if it doesn’t, then the problem could be related to viral infection.

2. Download a PST Repair Tool

If the cause of the error is PST files corruption, then not only will you be locked out of your email account, you are also at risk of losing all the data stored in your email account. However, the best way to resolve the error and ensure full data recovery is to download a reliable PST repair tool. By running a PST repair tool on your system, you can resolve the error 421 right away. It recovers your data, repairs corrupt and damaged PST files.

3. Scan Your PC with Restoro.

If viral infection and Trojans are causing the error 421 to pop up on your system, then it is recommended to download and scan your PC with Restoro. This is an advanced, intuitive, and user-friendly PC fixer. It is not just an antivirus but also a system optimizer and a registry cleaner. Unlike common antivirus software that only removes viruses and simultaneously slows down the system’s speed, Restoro removes all types of malicious software on your PC including malware, spyware, Trojans, and viruses, and also boosts the speed of your PC significantly. It is safe, easy to operate, and a quick fixer. It is compatible with all Windows versions. Click here to download Restoro and resolve error 421 today!