Robert, I have had the same problem which I solved by running Scan Disk [and for that matter Defrag] in Safe Mode. You still may need to turn off your screensaver however. Good Luck. Lew Russakov Huntington Beach, CA Thank you but I did try doing scan disk in "Safe Mode" and still get the popup window saying "scan disk has restarted 10 times because something is writing to this drive. Bob Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://freepctech.com