Sounds like I have the same problem as lee94513.
I had installed EmsiSoft AntiMalware v6, took the one month trial, then at end when I was going to take the free version, it would not load and said, "file are corrupted." I then uninstalled with revo-uninstaller with intention of re-installing the free version of EmsiSoft AntiMalware v6, but now after in goes almost through the entire install, I get a message saying it cannot finish the install and I have no alternative but to "rollback" the install. EmsiSoft AntiMalware v6 is the best to find antimalware and get rid of it. I need it. Please help.