Go to any one of them, right click, choose properties, go to the location tab and change it there to whereever you want it to be. The usual place is your Windows profile, that is c:\users\<your name>, so then it is c:\users\<your name>\Desktop.

I suppose your c:\users\<your name> folder is still there. There is no regular way to move it as far as I know. If it's missing, just make a new Windows account and copy all your stuff into it.