DirectX function GetDeviceRemovedReason error is a DirectX error that comes up during playing games on Windows 11 operating system. Usually, the error occurs in gaming systems powered by AMD and very rarely if any times at all on Nvidia or intel platforms. If you are one of the gamers affected by this error, fear not because we have a solution for you. Follow provided fix guide in order to correct this error and get back to gaming asap.

1. Update drivers

The first thing of course is to update your graphic card driver, you can do this with your graphic cards panel software or directly in Windows itself but the best practice and one that I would recommend is to go to your graphic card manufacturer’s website and download the latest driver there, and then install it inside Windows 11.

2. Change power mode

Changing power mode inside Windows 11 can solve this issue since sometimes Windows power manager if it is set to anything except best performance can interfere with the proper functioning of the graphic adapter, and because of this error. To change the power setting do the following:

1. Press ⊞ WINDOWS + I to open settings
2. Click on the System tab
3. Select power & battery on the right part
4. Click on the menu beside power mode
5. Select the best performance

3. Run SFC scan

Corrupted system files can also cause this error and if previous steps have not resolved it we will use Windows built-in tool SFC scan to find and repair all bad files in windows.

1. Press ⊞ WINDOWS + S to open the search menu
2. Type in Windows terminal and run it as administrator
3. If prompted click on YES on UAC
4. Press CTRL + SHIFT + 2 to run command prompt
5. Type in sfc /scannow and press ENTER
6. Wait for the whole process to finish and then reboot your system

4. Reinstall the problematic game

Sometimes game files can get corrupt and maybe even overwritten, try with game reinstallation if the problem still persists.

Blinking or Flashing Desktop After login - What does it mean?

Upon updating to Windows 10, some users might encounter a blinking or flashing desktop after logging in. This will result in a repetitive restarting of explorer or you won’t be able to make the start menu and shortcut keys work. In addition, the network icon might not appear in your taskbar as well. Other Windows 10 error messages include error code 0xc000021a.

Solution

Error Causes

Your blinking or flashing desktop after logging in might be the result of problems with the bushell.dll shell extension, which is a part of the Norton Security Suite. Another possible cause for this annoying problem is an issue with your display driver since not all systems will use the same display driver and will depend on what graphics card you use.

Further Information and Manual Repair

In fixing the bothersome blinking or flashing desktop after logging in problem, you can do a manual repair method to address the root problem. You need to be familiar with the Windows command line to successfully go through the process. However, if you are not knowledgeable or confident enough to do this on your own, it would be best to seek help from a professional. Or, you might want to consider using an automated tool to solve the issue.

You need to identify first what’s causing the blinking or flashing of your desktop after login to properly address the issue. The following methods can be done if your issue is caused by bushell.dll shell extension issue:

Method One: Forcefully Terminate Process

1. Press on Ctrl+Alt+Del then select Task manager
2. Start a Command Prompt as an administrator by choosing the File menu then Run New Task.
3. Type exe. Make sure to tick the checkbox “Create this task with administrative privileges.”

NOTE: Text input is most probably affected by the explorer restarts so you might need to repeatedly type some letters or to carefully input texts.

4. In the Command Prompt, type taskkill /f /im explorer.exe. This will stop the blinking or flashing.
5. Type cd “Program Files” afterward, type dir /s bushell.dll to locate where the dll is. (For example, purposes, use c:\program files\Norton Security Suite\Engine6422.5.2.15 as the location)
6. If the dll file is not found, you can try repeating step 5 but this time, use “Program Files (x86)” However, you can proceed with the next step if you already located where the bushell.dll is.
7. Type cd ”c:\program files\Norton Security Suite\Engine 6422.5.2.15” to change the name of the directory you found the dll in.
8. Type ren bushell.dll bushell-crash.dll
9. Restart now the system by typing shutdown /r /f /t o in the command line.

Method Two: Uninstall Programs

1. Log out then go to the sign in screen
2. Press the Shift key as you simultaneously click on the Power button on the screen.
3. Continue pressing on the Shift key as you click
4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
6. Click on the Startup Settings then select
7. Boot on Safe Mode by pressing 4 on your keyboard.
8. Log in then press Windows key + X.
9. Select the Device Manager then expand Display Adapter.
10. On your Display Adapter, right-click then select
11. Exit Device Manager
12. If in case you also have an older Antivirus utility, you should uninstall it as well.
13. Restart

NOTE: You might need to download the latest Video Driver on a working computer. Save it in a thumb drive then copy and install it on your computer. If in case there is no native Windows 10 driver, you can also download the latest Windows 7 or Windows 8.1 video driver. Afterward, install it in compatibility mode.

Method Three: Use Microsoft System Configuration Utility

1. Log out then go to the sign in screen
2. Press the Shift key as you simultaneously click on the Power button on the screen.
3. Continue pressing on the Shift key as you click
4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
6. Click on the Startup Settings then select
7. Boot on Safe Mode but this time, choose 5 to start in Safe Mode with networking.
8. Check if your problem is present or not in Safe Mode. If not, then you are on the right track.
9. Press on the Windows key + R then type msconfig to start up your exe file.
10. Click on the Services tab then choose Disable All. Afterward, click on
11. Once you’re prompted to reboot your computer, go ahead and reboot in Normal Mode. Check if the issue is still present.
12. If the blinking or flashing desktop after login is gone, then you can just do a process of elimination.
13. Start-up on your exe again then begin bringing up services a few at a time.
14. You can turn on all other services except for the following which causes the blinking or flashing desktop after login problem: Problem Reports and Solutions Control Panel Support •Windows Error Reporting Service.

DuckGoGo a popular private search engine is releasing its first browser soon that is focused on privacy like its search engine. From the recent blog, Gabriel Weinberg, CEO of DuckDuckGo, has stated:

“Like we’ve done on mobile, DuckDuckGo for desktop will redefine user expectations of everyday online privacy,”

From everything that we have learned so far, the browser will be focused on making privacy super easy and simple, eliminating tons of different settings about privacy, and making the whole environment robust privacy protection all set by default. Settings will be applied in all fields, across search, browsing, email, and more. Gabriel also said that aim of the browser is not just a privacy browser, it is meant to be built and used as your everyday browser, for everyday use that protects your privacy as a bonus. One interesting thing that was stated is that browser itself is built upon OS-provided rendering engines instead of typical Chromium. DuckDuckGo says this approach will strip away a lot of the unnecessary cruft and clutter that's accumulated over the years in major browsers. Also, the company stated that when compared to Chrome, the DuckDuckGo app desktop is cleaner, way more private and that early tests have found out that it is significantly faster as well. Is this just corporate advertising or reality? We will see once the browser is released, or once it is released for public testing. Until then take care and happy holidays.

If you encountered an error message that says, “Unhandled exception has occurred in your application”, when you start your Windows 10 computer, read on as this post will guide you on how you can fix it. This kind of error usually appears in a Microsoft .NET Framework window and it mostly pops up as soon as you turn on your computer. Here’s the complete context of the error message:

“Unhandled exception has occurred in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.”

When this error occurs, your computer may freeze or display other suspicious behavior at times. Either way, there are several options you can check out in this post to resolve this issue, so read on. This kind of error could be caused by several factors. It could be due to your antivirus program or other third-party programs installed on your computer. It is also possible that the installation of the Microsoft .NET framework id corrupted or some of its installation files are corrupted. Thus, to fix the error, there are a few suggestions you need to follow such as:

Option 1 – Try to temporarily disable your anti-virus program

As mentioned, the error could be due to the antivirus program or the Windows Defender Firewall installed on your computer. Thus, disabling them or any security software installed in your computer is always a good idea you can try when you’re not able to access the shared drive in your computer. There are times when you encounter problems like the “Unhandled exception has occurred in your application” error due to interference of antivirus or security programs. Thus, you have to disable both your antivirus program in the meantime and check if it fixes the error or not.

Option 2 – Put your computer in a Clean Boot State

As pointed out, it is possible that some third-party program or service is the one that’s behind the problem. To isolate this possibility and to identify the culprit, you have to put your computer into a Clean Boot State. To do so, follow the steps below.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• Once your computer has restarted, check if the error is now gone. If it is, then the culprit is some third-party program. Thus, you have to enable the third-party programs one by one to find out which one of them is causing the the “Unhandled exception has occurred in your application” error.

Option 3 – Try to run a System File Checker scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files that might be the cause why you’re getting the “Unhandled exception has occurred in your application” error. To run the SFC command, follow the steps given below.

• Type “cmd” in the Start search and then right-click on the appropriate search result.
• Next, select “Run as administrator” to open Command Prompt with admin privileges.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Now restart your computer and see if the problem is fixed or not.

Option 4 – Install and update Dependencies

There are times when programs and applications need to have drivers and supporting software installed for them to properly work. Although the installation usually takes care of it, it’s time for you to do some manual check especially if you are getting this issue of abnormal program termination.

• Install some qualified drivers – A number of high-end games and applications need to have correct and valid drivers for them to work. They just don’t work with general drivers though. Microsoft has this Windows Hardware Quality Labs testing also known as WHQL testing which makes sure that drivers meet the correct experience and pass through the proper testing before certification. Thus, when installing drivers, you need to ensure that they are qualified drivers for your Windows 10 PC.
• Download and install or Update DirectX – As you know, Microsoft DirectX is a suite of technologies developed by Microsoft to provide hardware acceleration for heavy multimedia applications like HD videos and 3D games. Since you are using Windows 10, you have the DirectX 12 version while the earlier Windows versions use the DirectX 11 version.
• Install the Microsoft DirectX End-user runtime – The Microsoft DirectX end-user runtime gives updates to version 9.0c as well as previous versions of DirectX. To install it, click on this link and download it.
• Update or install the .NET framework – The .NET framework is used by games and applications during development which means that without the runtime files that are installed in your computer, it definitely won’t work. Thus, you need to install or update this framework. You can also use the .NET setup verification tool to verify it.

Windows Terminal is a new free Microsoft terminal sort of application. When you open either Power Shell or Command Prompt in Windows they will be opened in different windows, and if you want several of each you will have several windows of each on your screen. Windows Terminal fixes this by opening each of the Instances of Command Prompt and Power Shell as separate tabs inside itself making it much easier to manage multiple instances of named applications. You can also run both Power Shell and Command prompt tabs in the same Windows Terminal. Luckily running command prompt and power shell in different tabs is not the only thing you can do. Windows Terminal lets you choose your own theme, it has emoji support, GPU rendering, split panes, and many more customizable options. Windows 11 will have Terminal as the default command-line environment for opening Power Shell or Command prompt, even Windows Subsystem for Linux (WSL)

Setting Windows Terminal as the default application

If I was successful I have managed to show you that Windows Terminal is something that you should use even if you do not or cannot upgrade to Windows 11. You can use it inside Windows 10 also. First thing is to download and install it. You can get Windows Terminal from the official Microsoft website here: Windows Terminal page After download and installation are completed, open the Terminal app and select the down arrow menu, click Settings. Alternatively, you can use CTRL + + shortcut. Inside Settings by default Default Terminal application would be set to Windows Console Host Click on the Default Terminal application to bring a drop-down menu and choose Windows Terminal from the list. Now by default once opened Windows Terminal will use Power Shell as the default profile, however, you can change this by clicking on the drop-down for the default profile where you can choose between Command Prompt, Power Shell, Windows Power Shell, or Azure Cloud Shell. Pick one that you prefer, click on Save and it will be opened as default on the next run.

Fixing Error 0x80040600

0x80040600 - What is it?

This is a typical MS Outlook error code. This error message may prevent you from sending and receiving emails via your Outlook account. The error message is displayed in the following format:

"An unknown error has occurred. 0x80040600"

If this is the primary source of your communication in the office, then this error can cause you a great deal of inconvenience as it may prevent you from running important business errands via your Outlook account efficiently. Therefore, when you experience the 0x80040600 error on your PC, it is advisable to fix it immediately.

Solution

Error Causes

This error code is triggered due to multiple reasons. These include but are not limited to:

• PST (Personal Storage Table) file reaches its file size limit
• PST file corruption
• Viral infection
• Incorrect Windows registry settings
• Improper shutdown of Outlook

This error code can lower your office productivity as you may be unable to send and receive emails on your Outlook account. Also, you may get locked out of your account and be unable to view your calendar entries and open email attachments saved previously in your account.

Further Information and Manual Repair

To resolve the error on your PC, you don’t have to wait for the network personnel to fix it or be a computer expert. Here is a list of easy and effective DIY methods to help you fix this error code right away.

Method 1: Download a PST File Repair

If the error occurs because your PST file has reached it maximum limit which is normally 2 GB or because of PST file corruption, then it is advisable to download a PST file repair tool. After downloading it, simply run it on your PC. This tool will immediately fix the damaged PST file and file the issue.

Method 2: Download an Antivirus

Deadly viruses like Trojans and spyware can penetrate into your PC if through downloads and opening phishing emails. Therefore, to remove such viruses it is important to install an antivirus and scan your entire PC.

Method 3: Install Restoro.

If the problem is associated with incorrect Windows registry settings or viral infection, it is advisable to download Restoro. This software is multi-functional deployed with 6 different and powerful utilities including an antivirus, a registry cleaner, and a system optimizer to name a few. The registry cleaner repairs the registry corrects the settings and fixes the damaged files. The antivirus on the other hand simultaneously removes all types of viruses including Trojans, spyware, malware, and adware on the system. While the system optimizer feature ensures the PC performance and speed are not compromised during the scanning and cleanup process. This software is safe, efficient, and compatible with all Windows versions. It has a user-friendly interface and simple navigations which makes it quite easy for all levels of users including novice and intermediate to operate. Click here to download Restoro and resolve the 0x80040600 error code on your PC today!

This post will guide you in what to do if you are trying to share the internet connection from your Android smartphone to your Windows 10 computer but USB tethering is not working. Although you can always connect your Android phone to your computer using a USB cable, you still won’t be able to access the internet. However, if you’ve already enabled the USB tethering option in your smartphone, you should be able to access the internet but if you still can’t then you can fix this issue by reading this post. There are several potential fixes you can check out to fix the USB tethering issue. You can try running both the Internet Connections and Network Adapter troubleshooters or try installing the USB RNDIS adapter or disable any unnecessary network adapters.

Option 1 – Try to run the Internet Connections and Network Adapter troubleshooter

There are various built-in troubleshooters in Windows 10 that can help fix system issues. Since you are dealing with an internet connection problem, you can try running both the Internet Connections and the Network Adapter troubleshooters. To run them, follow these steps:

• Go to Settings > Update & security > Troubleshoot.
• From there, you can select the Internet Connections troubleshooter.
• Click on the Run troubleshooter button to troubleshoot the problem.
• Wait until the troubleshooter is done identifying and fixing the problem automatically.
• Then follow the next on-screen instructions that may appear.
• Once it’s done, check if the USB tethering issue is now fixed.

Note: You can also try to run the Network Adapter troubleshooter. It is also located under the Troubleshoot section. Just scroll down until you see it and then run it.

Option 2 – Try installing or updating the USB RNDIS adapter

RNDIS or Remote Network Driver Interface Specification can also help you resolve the USB tethering problem. If the pre-installed driver does not help you in connecting to the internet, then you can try installing the USB RNDIS driver that is, if it’s not installed yet. If it is already installed, you can try to update it instead.

• Tap the Win + R keys to open Run and type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• Next, expand the Network adapters section and look for the Remote NDIS based Internet Sharing Device. But if you are using a Samsung smartphone, you might see “Samsung” instead of under Network adapters.
• Right-click on it and then select the “Update driver” option.
• Then select the “Browse my computer for driver software” option.
• After that, select the “Let me pick from a list of available drivers on my computer” option.
• Now uncheck the checkbox for “Show compatible hardware”.
• From the given list on your left-hand side, look for Microsoft and then select the Remote NDIS based Internet Sharing Device on your right-hand side.
• Click on Next. A new popup will appear where you have to click on Yes. This will install the driver.
• Now click on the Close button and restart your computer.

Option 3 – Try disabling any unnecessary network adapters/connections

Assuming that your Ethernet connection is showing ping loss which indicates that the internet is not stable. In such time, if you use the USB tethering functionality, you won’t be able to access the internet connection from your smartphone. The internet connection will be frequently disconnected since your computer gives priority to the Ethernet connection. Thus, you have to disable the Ethernet connection temporarily.

• Right-click the network icon on your Taskbar and select the option “Network and Sharing Center”.
• After that, click the network connection. And then click the Disable button from the status box that opens.
• After that, check if you can now connect to the internet or not.

The win32kfull.sys file is one of the kernel-mode device drivers in your Windows 10 operating system. In case you don’t know, there are two kinds of device drivers – the first ones are the normal drivers that communicate between your hardware and the operating system while the second ones are the kernel-mode drivers. The latter is necessary for booting your OS. And there are times when you encounter the win32kfull.sys error while booting your PC. Here’s the full context of the win32kfull.sys error:

“SYSTEM_SERVICE_EXCEPTION (win32kbase.sys) APC_INDEX_MIXMATCH PAGE_FAULT_IN_NONPAGED_AREA”

This error could be caused by corrupted or outdated drivers with incomplete files or it could be caused by some driver or software installed on your computer. To fix this error, here are some troubleshooting options you need to check out.

Option 1 – Try updating all the Drivers

As pointed out, the win32kfull.sys error can be due to outdated or corrupted drivers that are not compatible with your hardware. These drivers include but are not limited to display, network, sound, hard drive, and more. If you are not able to access the internet, you can just manually download the update using another PC. To update your drivers, here’s what you need to do:

• Tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• Restart your PC.

Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it. After that, you could also check if there’s a new update of the game you’re getting the issue of the black bar.

Option 2 – Identify and uninstall problematic programs by putting your PC in a Clean Boot State

One of the main causes of BSOD errors like win32kfull.sys is a problematic program that could clash with your existing operating system as well as computer architecture. There are tons of programs that are either incompatible or conflict with the existing drivers or software in your system. To identify such programs, you need to put your PC in a Clean Boot state. How? Follow these steps:

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” checkbox and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” checkbox.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)

After putting your PC in a Clean Boot State, try creating a system restore point and see if the problem still occurs. Clean Boot troubleshooting is designed to help you isolate the problem. For you to execute a clean boot troubleshooting, you must do a couple of actions (the steps are given above) and then restart your PC after every action. You might have to disable one third-party app after the other to really isolate the issue. And once you’ve narrowed down the problem, you can either disable the third-party app that’s causing the problem or remove it. Note that you must switch your PC back into the Normal Startup mode after you’re done troubleshooting the problem. Here’s how you can do it:

• From the “Start” menu, go to System Configuration.
• After that, switch to the General tab and click the option for “Normal Startup”.
• Next, go to the Services tab and clear the checkbox for “Hide all Microsoft services”.
• Then find and click “Enable all” and if prompted, you have to confirm.
• Afterward, go to the Task Manager and enable all the Startup programs and confirm the action.
• Restart your PC when prompted.

Once you have identified the program causing the problem, uninstall it right away from your Control Panel.

Option 3 – Perform an SFC scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the win32kfull.sys error. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files to good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

Call of Duty is a fun and good game, a great time killer with a squad of friends, however sometimes the game crashes, and fun is interrupted. In this guide, we will address and solve this unpleasant issue.

1. Scan game files

   inside launcher choose options and under them, choose scan and repair game files This process can take 5-30 minutes, as the game is 60GB large. This will look through all your game files and make sure they’re all valid and that none are corrupted, which may cause crashes. When it’s complete, you’ll get a notification that the game is now playable. Try again and see if your crashes continue.

2. Update drivers

   Keeping drivers updated is crucial for the game to run smoothly, GPU drivers are possibly important. Go to your GPU manufacturer's website and get the latest drivers.

3. Lower graphic settings

   Intensive graphic requirements can overload GPU and cause crashes, try lowering details in-game and see if this will fix the issue.

4. Disable overlays

   If you’re using a program like Discordthat has an overlay, you’ll want to disable it as it may be causing the graphic error

After so many years World of Warcraft is still among the most played MMORPG games in the world. It is still constantly updated with new content and tweak graphically in order to be relevant and fresh. But even the best or most popular ones can still have some minor issues and bugs from time to time. CAS System Was Unable to Initialize is the error that was reported lately by WOW players all around the globe and it happens in multiple Windows systems. In this guide, we will take with this issue and provide you with solutions on how to fix it so you can get back to enjoying the game itself.

1. 1. Repair WOW

      In battle.NET launcher select WOW and click on Options Click on Scan and Repair Let the process finish and then launch the game again

   2. Clean Windows registry

      Windows cleaning registry operation is a complex task and we will not cover manually each possible scenario here, instead of trying manually to find issues and clean registry download and install third party registry cleaner software. We recommend RESTORO as a universal meaning and optimizing Windows tool. Follow RESTORO instructions at bottom of the article to see how easy it is to install and use it.

   3. Run WOW with command line argument

      One of the solutions for this particular error is to run WOW with a specific command line switch: Run battle.NET client as administrator by right-clicking on it and choosing run as administrator If you are not signed in, sign in now Click on World of Warcraft to select it Click on options Click on Game settings Check the box associated with Additional command-line arguments When the box is selected you should've able to add inline argument or switch, add -uid wow_engb and confirm Run World of Warcraft

   4. Enable Secondary logon service inside Windows

      It was reported that enabling this service can fix the issue. Press ⊞ WINDOWS + R to open the run dialog Inside run dialog type in services.msc to open services windows Locate the Secondary Logon service Right-click on Properties from the context menu Inside the properties, screen click on the general tab Change the Startup type to Automatic and hit Apply to save the changes Run World of Warcraft

   5. Delete the cache folder

      Both indices and cache folder needs to be deleted in order to reset corrupted data. Make sure that both World of Warcraft and battle.NET are fully closed For this step to work, you will need to go into the folder where you have installed the World of Warcraft game. By default this is in C:/Program Files/World of Warcraft/ but if you have used another folder go there via file explorer. Once you are inside the folder locate the indices folder and delete it After that locate and delete the cache folder as well Restart your computer and start battle.NET

   6. Remove read-only attribute from WoW folder

      Another reason for CAS System Was Unable to Initialize error is because the World of Warcraft folder has been set to read-only and since the client does not have write privileges it will throw this error. To remove the read-only attribute from the folder go to your World of Warcraft installation folder but do not enter it Right-click on it instead and choose properties Under properties uncheck the read-only box and confirm. Run World of Warcraft