I'm not clear as to what you mean when you say, "I left uninstall running for hours".
Putting the above (temporarily) aside, first open the Task Manager and see if you find a "PCCleanerpro.exe" (or the like) running, under the Processes Tab. If there, highlight it and click on "End Process".
Many have had success removing PC Cleaner and other unwanted programs with the Revo Uninstaller. Their FREE version should do the job.
An added word of advice. As a result of a Google search, you will find various PC Cleaner removal guides. Some of them are considered "unsafe" with malicious content. Unless you have link scanner or safe browsing tool such as Web of Trust (WOT), I suggest you "proceed with caution".
Best of luck..
I wasn't paying attention (talking:)) and downloaded a program that turned out to be this monster (PC Cleaners 2012) that I can't get rid of.
The uninstall does not work in any form.
I ran my CCleaner and the uninstall in it, Add/Remove, Spy-bot,, MalwareBytes and Disk Cleanup.
Avast is still in place and running well.
I restarted in safe mode and ran them all again.
I left uninstall running for hours hoping it was just taking a long time. No luck.
The popup apparently blocks the uninstall.
I thought of using 'restore' but won't that still leave it on my machine?
Could someone please give me some advice?
Dell 4600, XP Home.