You Need a XP Disc and Licence Put it in the CD rom Reboot the PC and go into BIOS (Usually By Pressing DEL or F10) a boot Up a screen will Flash up at first it should say which key for set up But it flashes up and goes quikly. you Can Press PAUSE/Break and it should hold the screen on Pause you can then see which Key. Press enter or Pause again to continue . when in Bios use the Direction Keys to Navigate the Pages , Find Boot options and select CD Rom for 1st Boot Option . it will then Boot from the window disc. (BLUE Screen) it will Load some Drivers (see Bottom Of Page) then Take you to the first options Page, Select Install Fresh Copy of windows , it will ask which Partion you want to install on (select the Biggest) it will then ask If you want to format the Partition, Select Format Using NFTS Full . then follow the on screen instuctions . WARNING THIS PROCESS WILL TOTALLY WIPE YOUR PC OF ALL FILES AND GIVE YOU A FRESH INSTALATION Like a new PC But No Programmes , so Back up all your Files before you do this . Windows XP Service Pack 3 OEM is approx £60 from e-buyer.com You May Find it Cheaper elsewhere . Hope this helps.
Me, June 2009