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.
Force of habit, shorter to type, everyone knows what I mean.
EDIT:
It took me an embarassingly long amount of time to realize that does not work with 3RR.
That was the internal code in a fair number of processes, for referring to ‘The Red Ring of Death’, the 3 red lit segments of a 360 that means basically 95% chance its gotta be RMA’d, likely just wholly replaced.