Hey all, I am in need of assistance. My sister does work for our church as the secretary, and to help save money I donated my time and rebuilt my first computer (from 2000) and gave that to them. The computer has a 750MHz AMD duron processor, 512MB ram 250GB+ hdd space (+ is because the second drive isn't listed on the drive) I rebuilt that 2 years ago and installed a fresh copy of XP professional 32bit on it. Now there is a problem with it, it will not start. It doesn't get to the loading windows splash screen even, it stops with the message saying Windows could not start because the following file is missing or corrupt: System32\DRIVERS\pci.sys Then it instructs to insert the installation disk and to do the repair.. Well when I get the disk in it starts load all the files it needs but then stops and gives this message: file setupdd.sys could not be loaded. the error code is 4 Now the MS website says that it could be due to either damaged or incompatible hardware, and instructs to remove any pci devices. which I did, but I get the same thing I also attempted F8 and selecting restore to last know good configuration, and tried starting in safe mode So does anyone else have any ideas? Will installing XP on a new HDD fix this issue? Or is this being caused by something much deeper than a hard drive issue? I have never met a pc that I could not restore to working order with little money spent, will this be the one? Thanks for your help!