Question Black screen with flickering upon logging in to Windows ?

HugeHunkHarry

Commendable
Dec 13, 2019
29
1
1,535
For whatever reason, upon logging into Windows today the screen was black while the taskbar at the bottom continually flickered. I was able to open task manager but nothing beyond that (Task manager did not flicker). Eventually though after 5 minutes it would begin loading normally as it always has and everything worked as per usual. I'm wondering what might be the cause/fix of this problem as it has never occurred before ? Any help would be greatly appreciated.