Hi Rajesh
Sorry, I didn't get a disk with the computer - it was originally purchased as a recon machine so didn't come with any disks.
When I had my recent problems, a colleague was able to lend me an XP Boot disk which is how I got re-started (and re-formatted). Do I need to use this one? My PC doesn't have a DVD writer so I can't create one from scratch - I did try to create a boot disk from my son's machine which is running Vista but it didn't work. That was why I borrowed one from my colleague.
Regards
Andy