Try to boot into BIOS select to restore factory settings in BIOS press f10 then f9 then hit enter to save and reboot.
If error not resolved press windows + R button and search for task manager if it is also flickering then it may be a display driver error. reinstall the driver, clear temp, clear cookies, and delete registry associated to it.
Now, restart the system and install drives latest version again. If still error occurs you can search for the app causing problem and uninstall the app.