Question My computer screen randomly shows TV static for 2 seconds then goes back to normal.

Nov 14, 2020
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My computer screen randomly shows TV static (black/white dots) for 2 seconds then goes back to normal.

No new hardware, virus checks ok. Has happened four times like a virus
 
Nov 14, 2020
2
0
10
0
Gigabyte Z68XP-UD3
I7 4790
GPU AMD R9 270K
Windows 10 home 8GB ram

My system has not changed and previously had no errors.
 

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