I currently have v2 and want to upgrade to the latest version. We have been on Nod32 for the last 2 years & I just renewed in July. We are having serious security problems on our two computers at home. The kids play video games (in limited access accounts) on them which I think is the root of the problem. Our ISP has threatened to shut us off because somehow a trojan has gotten in and is sending emails to bank customers and is asking for account verification. We need to get this fixed ASAP. My husband's job requires us to have Internet access, so I need to make things as tight as possible. The instructions recommend uninstalling v2 before installing the new version. I don't want to uninstall v2 while on the Internet because of our problems. Can I download the new file (eav_nt32_enu.msi), unplug the computer from the internet, uninstall v2 and then install the new one? If so, how do I run the .msi file since it is not a .EXE file? Also, the ISP help desk said to check out eset.com & I told them I already had Nod32, then they said to run Kaspersky.com's free checker while in Safe mode. I couldn't do that because I didn't have Java runtime installed on the computer & I couldn't install it while in Safe mode. Third, they said to run MalwareByte's anti-malware software. I did that in Safe mode & it found 5 threats on the one computer and 114 on the other one (the one I suspected was the problem). I have deleted them all. I went back and then ran Kaspersky checker on the 5 threat system and it found 5 again. I suspect they are the same 5 as MalwareByte's found. They were in the \ProgramFiles\eset\Infected directory. Is that the quarantine area? If so, how can I completely get rid of them. Can I just delete what is in the eset\infected directory? Short of backing up the files, reformatting the hard drive & reinstalling the OS, drivers and the data files, is there anything else I can do to be sure the system is clean?