The ultimate guide to uninstall other crack windows 7 loader and fix your boot menu

Somebody is selling me a really good PC at a great price, it is a second hand pc of course, put together by that person with great hardware. It is running windows 7 ultimate ver 6.1 7600.16385 with a crack or something like that.

The hardware of that PC is really new and great quality, as i told you before the only inconvenience for me is the cracked Windows 7 Ultimate. So i am saving about 200 US dollars if a buy that PC. I really need to find a good way to remove the crack installed, i dont want to loose all the mp3,videos,etc. stored in the hard drive because of a fresh installation, nor i have any windows 7 ultimate dvd. I could buy the original Microsoft Activation key!!!!