If you are going to load win 7 it is best to do a fresh install and of course make sure you buy the correct version for your comptuer either 32 bit or 64 bit. Also run the win 7 compatibilty software on each computer to make sure they will work with it. No sense buying a license if you cannot use it.
The retail version can be installed one one computer then removed from the same computer an installed on a nother computer later on. The
OEM version is pretty much married to the first computer it is installed on.
The retail version can be installed one one computer then removed from the same computer an installed on a nother computer later on. The
OEM version is pretty much married to the first computer it is installed on.