Maximum PC

I am running Win7 Premium
I recently got an error message when opening up Photoshop called Owl Orphanage. Supposedly it is a bad plugin so I have uninstalled all plugins used by cs5 except one by Topaz labs called FX lab. I tried to uninstall with Revo and it said the topaz uninstaller did not work but it got rid of the name in the program list but the icon is still on desktop and still opens the program and shows in filter menu of cs5. I deleted the registry key in hkey_machine_software and still no luck. I reinstalled the program to see if the uninstaller might fix itself but it didn't. There must be some why of getting this thing gone but have no idea where to look or do it.
Also I have no problem opening the 32 bit CS5 just the 64bit version.
Thanx in advance if anybody has any ideas.

Sorry in the delay in getting back , I tried the clean boot and it did not fix any thing but when i went uninstall I first went to the Adobe Extension Manager and found the pixel bender plug-in and it was for Cs4 not 5. I removed it and Cs5 opens fine but still have no idea where that Fxlab is living but it seems to be working fine also.
Thanx for the help it is much appreciated.