I think the answer here is compatibility.
But we finally are in a turning point. OSX's new apps and windows metro apps are sandboxed.
But until running mostly apps becomes the norm in a desktop system beware that not having admin privileges doesn't not mean you can NOT: load programs at startup, read most of registry settings, passwords, read memory of/close programs of same sec level. A malware doesnt need admin rights to do evil.
Still I believe AV products are useless even for inexperienced users.
Actually windows does these checks automatically and replaces system files with signs of corruption/bad cert. You can force this check by using System File Checker tool in cmd:
sfc /scannow
Totally agree.
If you mind expanding on why, I'd love hearing your opinion.
Remember for example when Sylvio Berlusconi made a mediocre joke about Obama's tan how the correctness cannibals went frantic. Funny thing that the racist card was pulled by the people who actually had a taboo with skin colors.
But until running mostly apps becomes the norm in a desktop system beware that not having admin privileges doesn't not mean you can NOT: load programs at startup, read most of registry settings, passwords, read memory of/close programs of same sec level. A malware doesnt need admin rights to do evil.
Still I believe AV products are useless even for inexperienced users.