Here are some other ideas (in no particular order) so they can help you.
Does the same thing happen when using a different user account?
Try a Clean Boot.
Describes how to use the clean boot process to troubleshoot a problem in Windows 8.1, Windows 8, Windows 7, or Windows Vista.
support.microsoft.com
Check the refresh rate on monitor and for display settings?
Complete system specs will be extremally helpful.
Speccy report?
Do not forget to post the make and model of the PSU if this is a desktop.
Download then run Speccy (free) and post the resultant url for us, details
here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.
To publish a Speccy profile to the Web:
In Speccy, click
File, and then click
Publish Snapshot.
In the
Publish Snapshot dialog box, click Yes to enable Speccy to proceed.
Speccy publishes the profile and displays a second
Publish Snapshot. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.
R/R display drivers using DDU?
Display Driver Uninstaller (DDU) V18.0.4.6 Released. ChangeLog: NVIDIA: Removal of some left over logs from NVContainer. All: threading enhancements. All: Fixed issue (64) When using -Silent the program stays open after being done uninstalling. All: Registry cleaning improvement.
www.wagnardsoft.com
Maybe system file checker?
Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.
support.microsoft.com