I recently downloaded the Windows64 version but no matter what icon I click after unzipping the package, Windows10 doesn't seem to want to do anything with it. A black window that looks like command prompt quickly flashes the screen and exits itself out again before anything can happen. What is the correct way to install Windows64 Clamav on windows 10? Yes, I read the FAQ.

ClamAV.msi - base package for clamav, an anti-virus utility for Windows
How to Install

    simple mode: doubleclick the MSI installer package
    command line (displays only a confirmation dialog at the end): msiexec /i clamAV.msi /qr

There is no MSI installer package included after downloading clamav-0.100.1-win-x64-portable.zip


When you download a copy of Clamav (specifically Win64) Does that download contain all the most recent official and unofficial virus signatures? The computer I'm installing it or using it on will likely not be internet capable at any point in the future, if ever. I know this also sounds silly because then what would be the point of an antivirus? But I guess it's just my need to try and be as safe as possible overriding some of my logic there. The thing is that I wont be able to install updates. If Clamav does contain the most recent official and unofficial signatures, should I uninstall and reinstall the newest version every time? Does Clamav offer portable antivirus signature update packages that I can make Clamav "eat"? That's if I ever get it working of course.

Thank you for reading and Thank you for your help.