Long story short, I've bought a used laptop over eBay that comes pre-installed with W7 Ultimate. Been using it for 2-3 months without any problems. Today I tried to install something and I was asked to validate Windows. I then found out my copy isn't genuine! So I paid around £160 for the Windows 7 Get Genuine Online Kit. I got my key and tried to follow the instructions but I can't find the "change product key" option. So I did some Googling and then tried to use the "slmgr" solution. I can't find the files in SYSTEM32 (it was renamed to slmgr.vbs.disabled). I can't modify any files but I managed to copy the Vista32 version over. I ran slmgr -ipk <new key> and then -ati and rebooted but it still says my copy is not genuine! However at this point I can see the "Change product key" option. It's just nothing happens after I press the link! I am out of ideas now and obviously I can't do any repair installs w/o any dvd and I don't think one will be sent out to me? Can any please help me...seems that I've paid 160 quid for nothing! I would also prefer not to do a full reinstall as I've installed a lot of programs on Windows and also all my program settings/configs will be lost!