Thanks Willy. Deselecting the Permission repairs allowed the program to run. In fact after a successful run of the program, I went back & re-selected the Permission items & they finally ran, so who knows. At least 1 problem still exists. When I do a restart of my computer, my network printer drivers somehow get corrupted (the icons in Devices & Printers are grayed out). I have to remove the printers & reinstall. Not sure of Security Essentials update issue yet but the printer issue is more urgent to me right now. Not sure if it's related but also after a startup, in Device Manager, under Universal bus controllers, an Unknown device ! is shown. I just delete it & the ! in Devices & Printers next to my computer icon, goes away. If you have any ideas for the printer issue, I would appreciate it. BIG thanks again. Lee