On April 9, you wrote that Mighty Max is a scam. How about PC Doc Pro 5? I found it through a search but don't recall doing anything to download it, but it is downloaded. I tried to delete it but got a "cannot delete" message.
PC Doc Pro is another one of those "registry cleaners" that promise to "double the speed of your PC." You've probably seen TV commercials advertising similar types of products. It's all nonsense. The "problems" they claim to find scanning your PC are likely ones that they made up or purposely put there. I won't go as far as to say they are a scam, but I will say that they are a waste of your money. You don't need "registry cleaners." Their impact at best is minimal and at worst dangerous.
You can't delete it while it is running. First try removing it through Control Panel, Add/Remove Programs. If unsuccessful, boot into Safe Mode and try manual deletion of the PC Doc executable and its home folder. You can find a file's location (while it's running) by running Task Manager (right-click on taskbar and select Task Manager), find and right-click the process under the Process tab and select Open File Location.
I had Windows One Care for a long time and then I switched over to Microsoft essentials, and I am happy with it except for one aspect. It does not do a backup the way Windows One Care did each month. Do you have any comment?
One of the reasons Microsoft moved away from One Care was to reduce the overhead of the antivirus/spyware functions to just the essentials needed for those functions. This reduces the resource load on your system.
Why carry around the memory and resource footprint of software that is used just occasionally? The recommendation for backup in Widows 7 is the Backup and Restore scheduler. You can find more info at www.microsoft.com/windows/windows-7/features/backup-and-restore.aspx. Windows XP information can be found at support.microsoft.com/kb/308422.
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