Fix CAS System Was Unable to Initialize in WoW in Windows

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

Congratulations, you have just fixed CAS System Was Unable to Initialize in World of Warcraft in Windows 10 all by yourself. If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

Now that’s how you fix CAS System Was Unable to Initialize in World of Warcraft in Windows 10 on a computer. On the other hand, if your computer is going through some system-related issues that have to get fixed, there is a one-click solution known as Restoro you could check out to resolve them.

This program is a useful tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For a complete set of instructions in downloading and using it, refer to the steps below

Perform a full system scan using Restoro. To do so, follow the instructions below.

1. Download and install Restoro from the official site.
2. Once the installation process is completed, run Restoro to perform a full system scan.
   
3. After the scan is completed click the “Start Repair” button.