Previously here we have covered several fixes for Windows, like Windows 7 Startup black screen of death, Windows 7 endless reboot after upgrade from Windows Vista, Windows 7 is not genuine error etc. Now here is yet another fix for Windows 7.

Microsoft has identified an issue on Windows 7 which crashes (BSOD) during start process with STOP: 0x0000006B error message and fails to boot. The complete error message looks like below,

STOP: 0x0000006B (Parameter1, Parameter2, Parameter3, Parameter4)

This issue occurs because the Bootcat.cache file is corrupted or because the size of the Bootcat.cache file is changed since the last successful start. Fortunately Microsoft has already released a fix for this issue in Windows 7 Service pack 1.

If you don’t want to download Windows 7 SP1 at the moment then here is another simple workaround Start the computer running Windows 7 from the bootable disc drive or from the USB drive by using the Windows installation media & delete the Bootcat.cache file, and then restart the computer. The Bootcat.cache file is located at %SystemRoot%\system32\codeintegrity.