A preview update played host to a nasty bug which caused severe screen flickering when in Safe Mode.
Windows 11 ran into some serious trouble with Safe Mode due to a nasty bug in a recently deployed preview update, but the good news is that this problem has now been resolved – and you should have the fix already. This bug was caused by the recent preview update for Windows 11, patch KB5012643, which was an optional update for those who wanted early access to the bunch of fixes due for May’s round of patching. As Windows Latest reports, after installing the update, some Windows 11 users took to Microsoft’s Feedback Hub (and elsewhere online) to report problems with Safe Mode, namely that the screen flickers. In fact, the flickering effect was so bad for those hit by the bug that it rendered Safe Mode more or less unusable, so it’s no surprise that this was a priority fix for Microsoft.
