[Dismas]

Personally I wouldnt upload as "YES" you are more prone to viruses although microsoft said they worked hard to enhance the operating system`s security side.

Im running windows 7 and have done since it came out, I think its the more reliable of operating systems

I have found that just an ounce of common sense will save you more often than an AV/scanner will. As always, issues with the operating system will be fixed over time (like they were for Windows 7).