Right....The Blue Screen I refer to, is the Windows XP start up splash screen that you get from the XP Disc, so , This Is Not A Fault! Obviously, if I was able to "Boot the disc" on start up from dos, I would never see this, and instead would get to the "Recovery Console" where I would be able to select to FORMAT the hard drive, with the "R" command. Unfortunately, the disc is totally ignored, and instead..XP Loads! For the record: When I click on the .iso file created by NLite, I get to the XP start up splash screen as normal. This screen allows for an install but NOT a Reformat. I also, noticed, that it asks for the CD Key, even though I have used the unattended option in NLite...clearly, the disc isn't working OR IS IT? With regard to burning the iso file and Kelsins....reply: You need to burn the iso to the disk, not on the disk, what exactly do you mean mate "To the disc NOT ON THE DISC"....can you please be more precise! Finally, whilst in NLite, I asked it to "Create" an image file, and then clicked on Make ISO.....the result was a Winrar archive, with the extension .iso Hope this helps and once again, Thanks Guys! Regards, Raystr