If you are trying to uninstall nVida components, GO to nVidia's Website and select the NEW drivers you wish to download.
(the one compatible with your computer)
SAVE the Video Driver download.
>DOWNLOAD " Display Driver Uninstall " at this LINK:
Display Driver Uninstaller Download version 15.5.1.0
UNZIP the downloaded " [Guru3D.com]-DDU.zip ". RUN the DDU x.15.5.1.0.exe file in the extracted folder.
Follow the prompts, allow the computer to auto-boot into safe-mode, Choose nVidia uninstall when you get to safe-mode
When complete, you will not have a display driver anymore. (all of this is automatic, a monkey can do it)
After you are finished in SAFE-MODE, the computer will re-boot without a display driver.
Boot normally back into WINDOWS.
RUN the NEWLY DOWNLOADED video display driver you got from nVida (as shown in the first line of this reply).
CHOOSE: "Custom" Install from the nVida Display Driver installer.
Make sure "CLEAN INSTALL" is ticked.
After the video driver installation,
all should be good, the old drivers will be uninstalled and you should have a FRESH "clean" install of your nVida display driver.
> Cheers and Good Luck