In attempting to track a windows update problem I have encountered additional problems.
After downloading and installing the Anti-Malware_toolkit recommended programs, Some will not run to completion (SpybotS&D, Hijackthis among others)
Retry by clicking on icon results in the following error:
"Windows can not access specified device. You may not have appropriate permissions to access this item"
I ran the PC-Cleanup to the letter but no good results. I have run Dial-A_ Fix numerous times.