In my Windows/Temp folder is another folder called _av_prol.tm~ and then some numbers. After rebooting it remains. It cannot be deleted - nor any of the cryptic files it contains. Renaming the subfolders is not possible, nor the cryptic files - though I was able to rename the _av_prol folder to removeme.
Google has 3 posts about it with no answer. Yahoo has three matches with one match to this site. A search of this site for _av_prol gets one match when someone pasted their avast log file which showed such a folder being created.
What is this folder and how can I remove this folder and its cryptic files?