Hi there! I looked through many threads but couldn't find the answer to my question. Hope someone can help me. I was trying to run Windows XP recovery after apparently computer got infected by virus and refused to boot. Recovery stops at 37 min installing devices. The info screens on the back keep changing and green squares in the low right corner keep moving, but otherwise no progress. What i tried: - unplugged and took out all parts except for dvd-rw drive, video card, hard drive - replaced the relatively new (1 year) video card by the old one - took out 1g of RAM, left 1g running - did chkdisk through recovery console. it said that it found some mistakes and repaired some sectors - ran fixboot -set BIOS to defaults - ran diagnostics from dell cd but it didn't find any problems - tried to access the setup log file when the setup hangs, but i can't press shift F10 because keyboard won't work! None of that worked. I've read on many forums that USB devices often cause problems. My dell xps 410 only has usb ports. I unplugged the mouse, but i need at least keyboard. And i'm afraid if i disable USB support from BIOS i won't be able to turn it back since me USB keyboard won't work Could anyone please help me? I don't know what esle i can do. I need the system to boot so that at least i could retreive my files, because i don't have a backup and don't know other way to do it. I will appreiciate any help!