I recently received a windows 7 upgrade disc I bought for myself, thinking I could use the key and have my current version be validated (I'm using the trial or what not, asks me for a key every time windows starts up). I'm fine with this, but I have a lot of stuff I would prefer not spending hours downloading again (steam games, movies, etc.) I don't have an external hard drive at the moment or a cd reader so I currently can not use the disc or backup everything to one hard drive and put it back on. I was wondering if any of you know a way to validate my windows without re-installing, or some way to re-upgrade windows and use the key without losing all of the content on my computer. Thanks!