Windows 7 Update KB3133977 Bricks PCs with ASUS Motherboards on UEFI Mode
Well, we are not saying Microsoft is actually using creative means to push everyone towards ditching all other operating systems in favor of Windows 10, but it sure looks like it. A Windows 7 update that went live some time ago has somehow started to brick a large number of PCs.
The software update is titled KB3133977 (note that if you are going to boot up your system) and previously it used to be an optional update.
Interestingly, Microsoft changed the priority of the security update and listed it as recommended. Now for those who have automatic updates turned on, this means that the said update will get downloaded as well as installed on its own.
While it went well for the rest, users who own an ASUS motherboard and were using the PC on the UEFI mode have seen their PCs getting bricked.
The problem was that since Windows 8 was the operating system that introduced Secure Boot, it is something unsupported by Windows 7. The feature used UEFI for some processes.
Now when the aforementioned Windows 7 update was installed, machines using UEFI mode recognized the booting as a Secure Boot violation resulting in the machine’s refusal to boot. Here’s the message that pops up:
If you are facing the same problem thanks to the KB3133977 Windows 7 update, ASUS has a workaround solution for you that allows you to continue using UEFI and still boot up by deactivating Secure Boot. Here it is.