Most Linux users get all their software from their distribution's repositories, instead of pulling source from assorted websites. All major distributions GPG s

Most Linux users get all their software from their distribution's repositories, instead of pulling source from assorted websites. All major distributions GPG sign their packages and use (GPG signed) checksums, which are automatically verified by the package managers. On Windows, you may need to go to dozens of vendor sites to get software updates - each with their own update procedure (in addition to the Windows update itself). This process alone is probably responsible for many Windows infections, as it's hard for end-users to tell what's 'normal'. There's also a difference in the user base. Linux desktop users, by definition, are more technically knowledgeable and experienced - they can install an OS. As trivial as it sounds, most people are not willing or able to do that. The willingness to learn what's necessary leads to better practices.