KB5077181 was released about a month ago as part of the February Patch Tuesday rollout. When the update first arrived, users reported a wide range of problems, including boot loops, login errors, and installation issues.
Microsoft has now acknowledged another problem linked to the same update. Some affected users see the message “C:\ is not accessible – Access denied” when trying to open the system drive.


It’s going to come out that there’s AI in the code. And the code testing was done by AI, who gave the buggy code the green light.
Or worse: AI is doing the QA as well
Quality Artificial Intelligence assurance
What QA? Microsoft’s QA was always the CEO demoing the latest repository head on stage.
They at least used to be embarassed by a live BSOD.
“Code Testing” = QA
It passed the unit test, it must be good!
We’re doing the QA.