at least do this, sfc /verifyonly if so,...followed SFC /SCANNOW and press enter. (Admins privilege).
if persist.. you should do Updates/upgrade all windows files without formatting system..i will provide how to later.
might be my experience helped you a lot, usually happens on windows 7 ultimate.
if persist.. you should do Updates/upgrade all windows files without formatting system..i will provide how to later.
might be my experience helped you a lot, usually happens on windows 7 ultimate.