FYI- I did try to install the Free version of Revo Uninstaller in an attempt to fix the white screen but was prevented as it required me to be the Administrator!
Two days ago this white square just appeared after I log in , and stays there overnight and I cannot find out how to remove it.
Ive heard that its not uncommon.Im using a fairly new Dell Optiflex 7010 mini PC thats never been a problem to date.I dont always shut the PC down at the end of a...