BleepingComputer.com: Urgent Help Needed With Uninstalling Vista

hi all, I have installed windows vista on my laptop but its very slow etc.... I am now wanting to uninstall it but my recovery utility no longer works, backup discs included. I was wondering is it possible to move the windows folder that was renamed windowsold during the vista instalation to another partition and the boot from this seperate partition? if so how do i boot from the partition?....thank you in advance....bob