Today we will be solving the Device not found 3F0 error which is a common error, especially among HP (HP Pavilion G6), Lenovo, Acer, and Dell laptops/desktops. This error occurs when the computer is turned ON and when the system is about to boot. It can happen on windows 7,  8, or 10. When a mentioned error occurs one of the following messages will be displayed on your screen:

• “No bootable device – insert boot disk and press any key”
• “No Boot Device Found. Press any key to reboot the machine”
• “Boot Device Not Found. Please install an operating system on your hard disk. Hard Disk (3FO)”
• “No boot device is available”

The most common reasons for 3F0 error to occur is:

• Using the unbootable device or disk to boot from.
• If the bootable hard drive you are using might have corrupted or damaged somehow.
• MBR or boot sector is damaged on the bootable hard drive.
• If your system has gone through a virus or malware attack.
• The wrong boot order in the BIOS.
• Hard disk connection problem.
• System files or boot files unknowingly damaged.
• Corrupt hard drive partitions.

This is well, the most simple solution and the easiest one, try to change the boot sequence in the BIOS settings of your motherboard. Sometimes most easier solutions can provide great results and solve our problems. If sadly this fails and the issue persists move to the next solution.

2: Perform a Hard Reset

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Performing hard reset can often solve issues, to perform a hard reset do the following:

• Turn off the computer and unplug the power adapter. If there is a removable battery, it should also be removed.
• Then disconnect all peripherals, including the removable hard drive, etc.

then

• Press and hold the power button for 15 seconds to drain all remaining power.
• Insert the battery, and then re-plug the AC adapter into the laptop.
• Press the power button to turn on the computer.
• Once the computer starts up properly and the startup menu appears, use the arrow keys to select “Start Windows normally” and then press Enter.

Reconnect everything back of your peripherals. If by any chance problem still persists follow the next step:

3: Test Hard Drive Using HP Diagnostic Tool

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Use the built-in tool in the Hp device to solve the issue:

• Turn on your computer and keep pressing the Esc key until the menu appears on the screen.
• Next, press the F2 key.
• Choose the Components Tests option from the HP PC Hardware Diagnostics menu.
• Select Hard Drive from the Component Tests menu.
• Click on the Quick Test, then click on the Run once button.
• If there are still any issues with your hard drive, then run the Extensive Test.

4: Restore BIOS Default Settings

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• Press the Power button to start the computer, and immediately after this, repeatedly press the F10 key to enter the BIOS setup menu.
• To load and restore BIOS Setup Default settings, press F9 on the BIOS setup menu.
• Once loaded, press F10 to Save and Exit.
• Select yes, and then press Enter when it says Exit Saving Changes.

5: Reconnect Your Hard Drive

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• Turn the computer off and remove the power cable.
• If you have a removable battery, take it out
• Disconnect your hard drive and then connect it back.
• Reassemble your computer and turn the computer on to see if it fixed the issue.

6: Fix and Rebuild Damaged MBR

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• Boot from the original installation DVD (or the recovery USB)
• At the Welcome screen, click Repair your computer.
• Choose Troubleshoot.
• Choose Command Prompt.
• When the Command Prompt loads, type the following commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.

7: Fix Operating System

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• Prepare a Windows installation disc, CD/DVD or USB flash drive and connect it to your PC.
• During the installation process, launch Command Prompt.
• In Windows 7, under the System Recovery Options tab, click Startup Repair.
• In Windows 8 and Windows 10, click Repair your computer, then select Troubleshoot > Advanced options > Automatic Repair (Windows 8) or Startup Repair (Windows 10).

8: Replace the Hard Disk

How to Fix Windows 10 Error 0xc0000005

Error Code 0xc0000005 - What is it?

Error Code 0xc0000005 can be a frustrating error that occurs when you attempt to use programs within Windows 10. While it is most often associated with Windows 10, this particular error has also made an appearance in previous versions of the Windows operating system. In each case, the error works in the same ways and is generally caused by the same things.

Common symptoms include:

• Inability to run programs as designed
• Inability to start programs

While it can be hard to have to deal with an error like Error Code 0xc0000005 on your Windows machine, there are at least three different strategies that you can use to attempt to resolve the problem at hand. If you do not feel like you have the skill or ability to complete these steps on your own, get in touch with a professional who is familiar with the Windows 10 operating system that can assist you. Please note, if this error code is not rectified, you could be exposing your computer to other error messages such as error code 0xC1900101 -0x20017.

Solution

Error Causes

The most common causes of Error Code 0xc0000005 on Windows 10 machines include interference with other programs that are running on the computer, such as antivirus programs, problems encountered within the registry entries made on the operating system, or faulty drivers that cause bad interactions between the system and the program in question.

Fortunately, there are several methods that can be used to resolve these specific issues.

Further Information and Manual Repair

There are three main ways that you can try to resolve Error Code 0xc0000005 on your Windows machine. Depending on your degree of technical ability and confidence, it may be easy to moderately difficult to follow these steps, so if you feel like you are not able to complete the methods below on your own, be sure to get in touch with a qualified computer repair technician to aid you in the process.

Here are the best ways to resolve Error Code 0xc0000005 on your Windows machine:

Method One:  Disable Any Anti-Virus Processes

In some cases, an antivirus program can cause interference with your programs. If you believe that this is the primary culprit of your issue, try temporarily disabling the software that you are running to see if you are then able to use the program that experienced the error correctly.

Always be sure to keep on other security software, such as Windows Defender, while you disable your antivirus programs, ensuring that your computer is still protected from malicious software. In general, this is usually the best security tool that you can run on your computer, without interfering with other programs.

Method Two:  Run a Registry Cleaner

In some cases, the error code can appear when a registry entry is either seen to be missing or faulty by the system. If you believe this is the primary cause of your problem, use a trusted registry cleaning software to scan the files and attempt to automatically fix the problem.

Always be sure to check out the provider of the registry cleaning tool that you use, as not every tool that you can download from the Internet is safe. When possible, always try to use registry tools that are directly available from the Microsoft website, rather than ones that you do a simple search for online.

Once the registry scan is complete, take the time to reboot your computer to ensure that every change that has been made can be recognized and applied by your operating system and devices.

Method Three:  Check Your Drivers

If your drivers aren’t communicating properly with your hardware, it can cause the error code to appear. To fix this, open up your device manager software and choose to update your driver software. You can run an automatic search for updates to your drivers to make things easier.

When the driver updates have been downloaded and installed, make sure that you take the time to reboot your computer, which can allow your computer to apply and recognize any changes that have been made.

Method Four: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

There are instances when there are multiple accounts which is the result when there are a lot of users who use the computer. Some may use it more often, while others may seldom use it. Having multiple accounts can be quite confusing and inconvenient especially if it takes a lot of space. Thus, in this post, you will be guided on how you can delete a User Account on your Windows 10 computer, as well as how you can create a backup of the existing profile data and files. All the data of user accounts can be found at C:/Users, where its folder name will be exactly the same as the name of the user. You can check the exact user’s name by simply using the “net user” command either via Command Prompt or Windows PowerShell. Once you delete a user account, its folder, along with its files, will also be deleted. You can also create a backup for user files and the best way to do that is by copying the folder to other partitions or to an external drive. Here are two methods you can check out to delete a user account in Windows 10 – you can do it via Windows Account settings or via the command line. For more details, follow each one of the options provided below.

Option 1 – Delete the user account using Windows Account settings

• First, go to Settings > Accounts > Family & other users.
• Next, select the account you want to delete and click on the Remove button. This will open a confirmation window along with a warning message and two buttons that say, “Delete account & data” and “Cancel”.
• Click on the Delete account & data button to delete the user account.

Note: Once you remove a user account, it will also remove all its corresponding data such as items like Documents, Photos, Music, Desktop, and other related folders. Thus, if you have not created a backup, then you won’t be able to recover those files.

Option 2 – Delete the user account using the command line

If you want to delete several user accounts, then doing it via Command Prompt or Windows PowerShell is a lot quicker. To get started, follow these steps:

• In the Start Search, type “command prompt” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• Next, type the “net user” command and hit Enter to execute it. This will show you the exact usernames on the computer.
• After that, type the “net user <username> /delete” command and hit Enter to execute it. This will delete the account and all of its data without any warning. You have to replace “<username>” with the name of the user account.

Troubleshoot CoreFoundation dll Error

CoreFoundation dll Error – What is it?

The CoreFoundation dll error is a common error associated with Apple Software products. Most of the Apple Software products rely on this dll file to load and run. This dll file is Apple’s proprietary. The error message is prompted in the following format:

“CoreFoundation.dll was not found” or “Apple Application Support is missing’.

Solution

Error Causes

The CoreFoundation.dll error message is triggered because of several reasons. These include:

• Deleted CoreFoundation dll file
• The CoreFoundation dll file has been overwritten
• Poor installation of the Apple software
• Corrupt software due to viral infection
• Registry problems

Further Information and Manual Repair

It is advisable to fix CoreFoundation dll error code right away to avoid inconvenience. This error may stop you from accessing and running your desired Apple application. Here are some of the best ways to resolve this error on your system:

1. Restore the Deleted CoreFoundation dll File

Since Dynamic Link Library is a shared program, if you happen to delete an Apple program on your PC, chances are you might have deleted that file too in the process. Therefore, the easiest way to recover and restore the CoreFoundation dll file and resolve the error is to look for the file in the recycle bin. If you can’t locate it, then another way to restore the missing CoreFoundation dll file is to download the files from the internet.

2. Reinstall  Apple Software

If the error still persists then it is advisable to re-install Apple software via iTunes or any other Apple Software that you have on your PC. For example, if you have iTunes, then to reinstall it first go to the start menu and then the control panel. Now click on Add/Remove programs and locate iTunes software. Click the Uninstall button next to iTunes. Wait for a while until the program is completely uninstalled. After the installation is complete, restart your PC and then download the latest version on iTunes and install it. Now try running the software again. Hopefully, this will resolve the issue.

3. Scan for Viruses

Another way to resolve CoreFoundation dll error on your system is to scan for viruses. Run an antivirus to detect viruses and remove them from your PC.

4. Clean Your Registry

Remember DLL file errors also indicate a corrupt registry. When you don’t clean the registry it overloads with unnecessary and obsolete files like junk files, cookies, temporary internet history, and bad /invalid registry entries. When these files accumulate, they damage the registry, dll, and system files too. It also causes disk fragmentation. To repair the registry and fix dll files again, download a registry cleaner. Whether you want to scan for viruses or clean the registry, it is advisable to download Restoro. This is a multi-functional and advanced PC Fixer deployed with an intuitive algorithm and multiple powerful utilities. These include an antivirus, a registry cleaner, Active X controls, and class scanner, and a system optimizer. The registry cleaner detects all registry issues and resolves them instantly. It wipes out the unnecessary files cluttering and damaging the registry. It fixes and restores the damaged dll files including CoreFoundation dll file thereby resolving the error. It takes a few clicks to resolve this error. The antivirus feature scans your entire PC and removes all kinds of malicious software including spyware, malware, viruses, and Trojans. To ensure the antivirus does not slow down the speed of your PC, Restoro also features a system optimizer that boosts the performance of your computer significantly. It is powerful and bug-free software with a user-friendly interface that makes it quite easy to operate. You can download it on any Windows version as it is compatible with all. Click here to download Restoro and resolve CoreFoundation dll error now!

Resource hogging is a term when one single application or few of them are taking all system resources for themself causing extreme slow down in the computer and nonresponsiveness. It can be a very frustrating and time-consuming experience and it can cost you money if you can not finish work on time due to this effect. I believe that everyone has experienced at least one slowdown in their IT carrier because of resource-hogging applications and most users do not know how to deal with this. We are here to help you with this issue. Just to be aware that this method shown here is not a method to miraculously speed up your PC or anything similar, this is to be able to detect and recover from extreme slowdowns. Hardware components are still very important and if you can upgrade your computer if it is outdated, please do it because new applications will require a more modern system, and not any kind of tips and tricks will save you from outdated hardware.

Identifying resource hogging app

Now when we got that out of the way let's talk about slowdowns, it is no secret that sometimes an application has bugs and memory leaks that can cause this kind of behavior, and sometimes the application simply takes up too much memory for any other application to work normally. The most simple and straightforward way is to bring up a Windows task manager and inspect running applications and services. You can bring task manager by the key combination of CTRL + SHIFT + ESC If the system is in deep memory deficit you will have to wait for the task manager to open and show itself on-screen. Once opened, click on more details if that view is not opened by default. Once the view expands you will see all running applications with how much RAM memory have they taken and how much CPU they are using.

What to do with app?

Now you are presented with a choice on what to do with the problematic application. If you press the end task button on the bottom right, Windows will kill the application and its processes but any unsaved work inside the application will be lost and unrecoverable in most cases. Or you can try to remove smaller applications running to free up more memory and CPU in order for the computer to catch up. Any choice you make is up to you, but be very careful not to kill Windows essential service by mistake, that will cause immediate system instability with high chances of a system crash.

If your Windows PC encounters an error, it will display a Blue Screen of Death or BSOD error which usually comes up for a fraction of second and creates some logs or Dumps Files as what other user prefers to call it and then boots your PC suddenly. This process usually takes place quickly that most users find it hard to get the error code and won’t probably be able to check what really went wrong with their PCs. This is where the dump files come in. They are stored internally in your computer and can only be accessed by an administrator. They are classified into 4 main types and in Windows 10 they are either:

1. Complete Memory Dump
2. Kernel Memory Dump
3. Small Memory Dump (256 KB)
4. Active Memory Dumps

Dump Files are useful as they could help you in resolving the problem and so you need to configure your Windows 10 PC to create them but first, you need to make a system restore point. This is essential as you are about to modify some system files as well as critical Windows 10 settings. There are two ways you can create Dump files – first is by modifying the settings in the Startup and Recovery and lastly is via the WMIC command line. Refer to the instructions prepared below to be guided on how you can create Dump files after any BSOD error using these options.

Option 1 – via Startup and Recovery

• Type in “control panel” in the Cortana Search box and then click on Control Panel from the search results to open it.
• After opening Control Panel, you need to make sure that you view the contents by their Category then click on the header link which is labeled “System and Security” or you could also right-click on the This PC icon and then click on Properties.
• Next, select the Advanced system settings from the left panel. Once you do, a new and small window will pop up.
• Under the newly opened window, look for the section called Startup and Recovery and then click on the Settings button.
• And from the System Failure section, you can choose any option from the drop-down for Write debugging information such as:
  • None – this means that there is no dump file created by Windows
  • Small Memory Dump – this means that Windows will create a Minidump file on BSOD
  • Complete Memory Dump – this means that Windows will create a Complete Memory Dump file on BSOD
  • Automatic Memory Dump – this means that Windows will create an Automatic Memory Dump file on BSOD
  • Active Memory Dump – this means that Windows will create an Active Memory Dump file on BSOD

Note: The complete dump needs a page file that is allowed to be the size of the physical memory installed in your PC with a dedicated 1 MB of space for just the page header.

• Now once you have selected the most suitable option for you, just click on OK/Apply and then exit.
• Restart your PC to successfully apply the changes made.

Option 2 – via the WMIC command line

• The first thing you need to do to create Dump files via the WMIC command line is to tap the Win + X keys combination or simply right-click on the Start button and then select the Command Prompt (Admin) option. You could also type in “cmd” in the Cortana search box and then right-click on Command Prompt from the results and select Run as administrator.
• After that, type in any of the commands given below depending on your preferences so that your Windows 10 PC will be configured to create Dump Files:
  • No dump file: wmic RECOVEROS set DebugInfoType = 0
  • Small Memory Dump: wmic RECOVEROS set DebugInfoType = 3
  • Kernel Memory Dump: wmic RECOVEROS set DebugInfoType = 2
  • Complete Memory Dump: wmic RECOVEROS set DebugInfoType = 1
  • Automatic Memory Dump: wmic RECOVEROS set DebugInfoType = 7
  • Active Memory Dump: wmic RECOVEROS set DebugInfoType = 1

Note: A complete dump has to have a Page file which is allowed to be the size of the physical memory installed on your PC accompanied by a 1 MB space for just the page header.

• Now type in “exit” in the Command Prompt to exit it.
• Restart your PC to apply the changes made successfully.

The new Windows 10 update has brought some fixes, improvements, and little things to personalize our computer more. One of these personalization updates we have received is that we can now finally change the color of our START menu and taskbar and it is easy as 1,2,3. In order to change and personalize your START menu and/or title bars all you have to do is click on your windows icon to bring the start menu up and then click on settings. Once you are in setting windows go to personalization settings. When the personalization setting opens go-to color tab on left and scroll down until you find 2 checkboxes under "show accent color on the following surfaces:" check ones you wish to apply the effect to and you are done. Now your START menu and/or title bars are using the color scheme of your choice.

Among other things and innovations, Windows 11 brings to the table is the game mode. The game mode is a system designed to release some resources and optimize your system when Windows 11 detects that you are playing games. It also turns off automatic updates while the game is active. The game mode is active at all times and usually, everything works great but in some instances, it can sadly cause some performance issues. If you are one of these unlucky people where game mode is not working as supposed to do, don’t panic, we have a quick guide for you on how to turn it off.

1. Press ⊞ WINDOWS + I to open settings
2. Inside click on Gaming
3. Select Game mode
4. Click switch beside Game mode to turn it off
5. Close settings

Everything will be automatically saved and applied and you should not have any issues from now on. If for any reason you wish to turn game mode back ON, just follow the same steps and turn the switch to ON.

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.

How to Fix Error Code 0xC004C020

Error Code 0xC004C020 (Code 0xC004C020) – What is it?

Error code 0xC004C020 (Code 0xC004C020) is an error that occurs when you attempt to activate a copy of Windows 7 with a key, but the key has already been activated multiple times. When receiving this error code, it means that you are trying to exceed the number of times that the Windows 7 key is allowed to be activated. Common symptoms include:

• Attempting to install Windows 7 with a key and a dialog box with the code 0xC004C020 is displayed.
• The computer is unable to install Windows 7 with the key.
• Certain features will refrain from working until the correct key has been entered.

Solution

Error Causes

Error Code 0xC004C020 occurs when you are not able to install Windows 7 using a previously purchased key code that has been installed numerous times previously on the same computer.

• You are not able to use your previously used key to install Windows 7.
• You have used the Windows 7 key the maximum number of times allowed.

Error code 0xC004C020 simply means that the Windows 7 code that you are trying to use to install Windows 7 has already been used the maximum number of times allowed, even when installing it on the same computer that it was previously used on. This would indicate that the key is what is known as a volume key- meaning that there is a cap on the number of uses.

Further Information and Manual Repair

Many people encounter this problem when they are doing software development or testing and need to reinstall Windows 7. Some people might also encounter this error code when installing Windows 7 with a key that was used too many times previously. It should be noted that there are several ways to fix this problem, but if nothing is working, you should contact a computer repair technician.

Method One

Activate by phone- the long method.

1. Click the start button, right-click Computer, click Properties, and then click Activate Windows.  This will open Windows Activation.
2. Click on “Show me other ways to activate”.
3. Find and enter the Windows 7 key, then click Next.
4. Click on “Use the automated phone system”. If you are prompted for an administrator password or a confirmation, confirm or type the password now.
5. Select the location nearest to you and then click the Next button.
6. There will be a list of available phone numbers, choose one and call it. There will be an automated system that will guide the activation process.
7. Enter the installation ID when prompted, it will be listed on your computer screen.
8. The phone system will give you a confirmation ID, write this down.
9. Type this confirmation ID into the space that is provided by step 3. This will be in the activation dialogue. Then, click NEXT and follow the instruction.
10. If this is not successful, stay on the line and be transferred to a customer service representative that will assist you.

Method Two

Activate by phone- this is a much simpler method.

1. Click on Start, type: slui.exe 4 into the Search box
2. Press Enter on the keyboard.
3. Pick your country.
4. Choose the Phone Activation option; stay on hold to speak with a customer service representative.

Method Three

Error code 0xC004C020 occurs if you have used your Windows 7 activation key on multiple computers, or multiple times on the same computer. You are not allowed to exceed the uses of the key—you should consider purchasing a new key if this is the case. A Windows 7 key is available for purchase online through the Microsoft website, in the shop section. The new product key must then be activated within 30 days, or it becomes no longer valid. It can be activated online or through the telephone. If it is not activated on time, features will stop working until the new key has been activated. This should be the last resort method, as you should not have to purchase a new Windows 7 key code if it is not necessary. If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.