Step-By-Step Instruction To Fix Win Error Code c000021a C000021a (fatal system error).The session manager initialization system process ...
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If you have been trying to resolve a Windows Error code c000021a you are in luck. Our how-to guide will walk you through the steps needed to clean up the problem from your PC.


After you complete the installation for Roxio GoBack which is a program that accompanies Norton System Works, after you attempt to restart your PC following installation you receive this error message.


When you have GoBack installed and it is located in the boot sector you will receive this error. To repair the error you must remove GoBack and then contact Symantec at for recent upgrades you can obtain if you want to use GoBack with the Windows XP operating system.

To remove GoBack boot up your PC and choose SPACE during the restarting process. This will allow you to review the menu choices for GoBack. You should choose Disable GoBack and then continue to finish the startup. When the desktop appears click on Start on the main toolbar and then choose Control Panel. When the Control Panel window opens choose Add or Remove Programs and then choose GoBack from the list and then choose Remove. From here you will be walked through uninstalling GoBack from your PC.

Since there are files which remain on your PC after you have uninstalled GoBack it is necessary to remove them to avoid conflicts. Click on >strong>Start on the main toolbar and then choose Control Panel from the menu. Click on Add or Remove Programs and choose Adaptec from the list then choose Remove. This is software associated with GoBack. Click on Start on the main toolbar and choose My Computer from the menu. When the window opens choose C drive and then click on the Windows folder. Double click on the Temp folder and choose Edit then click on Select All and then press the Delete key. Return to the Windows folder and then right click on GBsetup.exe and then press the Delete key. Follow the exact same procedure to delete the GBSethlp.exe file.

TipFor more information, please see: How to fix error #c000021a

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