I'm not trying to talk anyone into installing it. Just putting the info out here. It is a clean copy (straight from Microsoft) and it is installed from a dvd. You download the file, burn it to disk, then install. As in my previous post, it is not meant to be your only OS at this time. It is meant to be installed on it's own partition or disk and you can set it up as a dual boot....whatever you are using on one and 7 on another disk, partition, or computer. It's a test drive before purchase.