Asus PCs running Windows 7 slam into boot failure after recommended patch

Some Asus PC owners running Windows 7 are being treated to an unpleasant surprise as their machines stop booting properly.

Instead of booting into Windows 7, users have been running into a “Secure Boot Violation” error message, claiming that the system found “unauthorized changes on the firmware, operating system, or UEFI drivers.” More of this article from PCWorld.com