Thanks for the quick reply AaronXP just tried it but it didn't seem to work, I rebooted after it had finished but all files are still set to read only. Just spent a couple of hours searching the net for an answer but I didn't find one, although there seems to be alot of people with the same problem.....wounder if this is a bug in XP, anyway I'll try it on an old Win98 box I've got up in the loft somewhere but if you can think of anything else I'm willing to give it a go.