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Can I transfer a Windows 7 license to another computer?
Often I have friends come to me wanting me to fix there PCs. Usually it just means they have a tangle or virus and junk and I prefer to just wipe the drive and start over. This seems like the best solution?
My problem, if I do this, is how can I put a valid Windows version back on their PC without buying a copy all the time? Is there a better way to do all this?
Use the license key from the version that is installed on the problem syste. It will be on the label on the system. If you do this often, you may need to call Microsoft to activate. However, this is very simple.
If they have the original Windows CD, you can just use that with their previous license key. If they don't, you have to try trial and error to work out which CD matches their license key. For Windows XP in particular, you need a CD with the correct edition and service pack. Combinations can be made up of:
Windows
XP / Vista / 7
Home / Professional / Business / Ultimate
Original Release / Service Pack 1 / Service Pack 2 / Service Pack 3
I have this problem at work all of the time, where I have the license key, but don't know which version of Windows was originally installed. I had to trial-and-error three different installations before I found the correct one.
So if you can burn a copy of each Windows CD, you can be sure you can reinstall with an existing key.
If its a XP system, the key on the sticker on the system would work with media of the same sort (- that is to say, you can use the key on an OEM box with a OEM install cd - so a 'generic' OEM XP home disk can work with the key the sticker on a dell box (for example) and likewise. You wouldn't need fresh media, just one copy and the licence that came with the system.
With windows 7, the files for all versions are there so you can, with a little work build a universal installer for them.
