link
To fix the screen flashing issue, follow steps below.
Run Registry Editor, and then delete the following registry keys:
- HKEY_USERS.DEFAULT\Control Panel\Desktop\HungAppTimeOut
- HKEY_USERS.DEFAULT\Control Panel\Desktop\WaitToKillAppTimeOut
- HKEY_CURRENT_USER\Control Panel\Desktop\HungAppTimeOut
- HKEY_CURRENT_USER\Control Panel\Desktop\WaitToKillAppTimeOut
- HKEY_CURRENT_USER\Control Panel\Desktop\WaitToKillServiceTimeOut
Restart the computer after deletion, and the screen flashing issue on Windows 7 should be fixed.