Hey they got to enforce digital restrictions management some how haven't they?
Just go ahead with a fresh install an then copy over the user profiles so you save your documents, but I am unsure if you can clone a drive from one partition to another, are you using ghost? I use that in work all the time an i an the rest of the lads in work ghost from one drive to another. You can't use a external drive btw ghost has no support for USB hard drives at least version 7 doesn't.