I'm not sure Windows (and transitively Microsoft) is a positive brand and its continuity an illusion worth keeping. It reminds me of antivirus, slow boots, periodic reinstalls to make XP quick again, BSOD and many other things that drove me away from it years ago. Anyway, if one never tried anything else not to leave home could be reassuring and it seems that Win7 wasn't so bad anymore (but I still get calls from friends with infested Windows machines).