Good morning,
(Windows 10 Home version 1909. Gigabyte Z390 UD mainboard. i5 9400F cpu. 8G Xfury ram.)
I've just changed a mainboard and cpu to my home built pc, and every now and then I get a blue box appear mid screen that has a circular icon and the word (null) next to it. The only option I have is to click an "ok" button on that box. See attached pic. I'm guessing it's something from the old mainboard that's trying to find something.....
Any ideas would be greatly appreciated, thanks.
Monitor displays a "null" box-null.jpg

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Problem solved. It was one of the Gigabyte ApCent utilities (Smart TimeLock) needing configuring. As I don't require it, I uninstalled it. Hope this helps someone else out there :)