Since screen flickering problems in Windows 10 can be narrowed down into two general categories, you will need to check your computer and see exactly what it looks like when the screen flickers.

If your Windows computer screen is flickering on system startup, update or reinstall your graphics card driver, toggle the G-Sync Mode, etc.

Computer monitors can get a little finnicky for a variety of reasons, but unless the problem is truly catastrophic, most of the fixes are quite easy and quick.