PCKeeper Antivirus (essentware.pckeeper-antivirus.pckav) is a Windows software application that has been discovered and submitted by users of Software.com. The latest version that our users have reported running on their systems is PCKeeper Antivirus 1.1.337.0. The most popular version of this application used by our users is PCKeeper Antivirus 1.1.1050.0.