1, check whether the wiring of the display is loose;

2. Monitor problem.

It is recommended to repair the monitor.

If there is a virus in the computer at the same time, you can try to kill the virus with anti-virus software. Press F8 key after startup to enter the safe killing mode.

I don't know what antivirus software you use. Take Tencent Computer Manager as an example.

Method:

Tencent computer housekeeper-virus killing-all can be killed.

If you are satisfied, please like it ~

Tencent Computer Manager Enterprise Platform: /c/ Manager/