Regarding this fuckass little Win11 update:
I've read up on it and PCs affected are specifically ones that are 25H2 Build 26200.7623 and 24H2 Build 2600.7623. Mine is neither of those, so I was spared the bullshit. I also checked and apparently it didn't even install KB5074109.
I'm to going include links to the articles I read, one to the one with my source for which computers are affected and one with two step-by-step guides for how to unfuck your PC when it doesn't boot up properly, so you can go and uninstall KB5074109:
Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.
The Jan 2026 Windows 11 update is causing boot failures for some, with PCs getting stuck at startup or refusing to load the OS entirely. Her