After installing Windows Update KB2454826 for Windows 7 and for Windows Server 2008 R2 using Windows Update or Microsoft Update, you may receive one of the following error codes:
Additionally Windows Live Mail may fail to launch successfully.
As KB2454826 is a non-security update, the workaround for these two issues is to uninstall the update KB2454826. This update has been removed from Windows Update so you should not be offered this update. However, this update may be cached for install on your computer if it has been downloaded but not installed.
For more information on KB article 2454826, click the following link to view the KB Article on the Microsoft Website:
2458462 A performance and functionality update for Windows 7 and for Windows Server 2008 R2 is available
If you are encountering the blue screen issue or the Stop: 0x0000007F issue, follow the steps in one of the methods below:
(Note: You may find it easier to perform the steps in this KB article if you print the KB article first and then follow the steps.)
Method 1: Uninstall the Update in Safe Mode
First, boot your computer into Safe Mode. For information on how to boot your computer into Safe Mode, click the following link to view the article on the Microsoft website: