I was looking for other threads related to this and was very surprised not to find any.

A certain Pc I use is also used by other less security conscious people and somehow a program got on it that is named "personal antivirus" it installs in the program files folder as 'PersonalAV' and seems to have a .pav extension.

I do not want this on the computer and it does not show up in the add/remove programs list ... How the hell do I get rid of it??

I have scanned it with my other AV/firewall and it doesn't seem to be malicious, its just bothersome that its there and so persistent in remaining - and always throwing redundant pop up windows at me.