Hi Need a bit of advice I run two computers ,this one for the internet with a legitimate home edition,my other one is used for my digital images,recntly I bought a sata hard drive off ebay that was supposed to have a working edition ofXP Pro installed, Ias I never ever went on the internet with that PC it never entered my head to find out ,just assumed it was legitemate. Then last week I had problems with this PC( Blue Screen) so whilst I was finding out how to solve the problem I needed access to the internet so decided to use my other one to order items from another supplier on the internet,a screen popped up about checking software,as I assumed it was legite I just clicked on it not worried about it as I assumed Iwas ok,then it showed that the operating system was not. I need to get that PC working without losing anything of that hard drive,I have since purchased a legit copy of XP pro and was thinkng of installing it on to an IDE hard drive in the hope that it will become the master boot hard drive,or install the legit copy on the boot sata ending up with 2 operating systems ,then uninstall the one that is not legit,I cannot install another sata as I have another 3 that I use for storing my editing photgrapghic images,maybe if I can find out what is on these there may be enough space to install the new operating system, Any advice on what to do without losing my data would be very much appreciated.