After downloading, never run the ISO immediately. Check its cryptographic hash using PowerShell or a tool like CertUtil .
: If you have a valid product key (usually found on a COA sticker on your PC), you can use any retail or OEM Vista DVD to reinstall the OS. windows vista home premium 64 bit iso download microsoft
certutil -hashfile C:\Downloads\vista.iso SHA1 After downloading, never run the ISO immediately
The most trusted option for finding untouched retail and OEM install media is the Internet Archive. Enthusiasts regularly upload original, preserved MSDN and retail disc images. preserved MSDN and retail disc images.