Last week Microsoft released an update (MS13-036 Specifically part 2823324) that may have compatibility issues with some security/anti-virus software, resulting in a computer blue screening (not starting up properly and returning a blue screen with white error codes on the display)
To resolve this issue you can restart your machine in safe mode (restart your computer and as it is booting up repeatedly hit the F8 key on your keyboard right before the windows logo appears on your screen, then select “Safe Mode” with your arrow keys and press the enter key), open your Control Panel, open “Programs and Features”, toward the top left of the window click on “View installed updates”, search for KB2823324, highlight that update and click “Uninstall” after the uninstall process is complete, restart your machine, and you should be back up and running.
For more info check out the original article at Kaspersky Lab’s Security News Service: ThreatPost