Hello I have a desktop PC with Windows XP PRO that I just fixed after a few years of it not working, it would power on but wouldn't display anything and would also not beep on start up. I put in a new video card and changed the CMOS battery. Computer turns on and displays on a monitor. My problem is I get to "choose a mode to have windows start in" and it doesn't matter what mode I choose I always get the same couple of results. Missing ntfs.sys file, missing isapnp.sys, missing pci.sys and that I need to insert the original setup CD-ROM to possibly repair and select 'r' at the first screen to start repair. I try to do this and every single time I never even can get into the start repair screen. I have changed the boot order multiple times. Have tried almost every combination.\r\n\r\nDoes anyone have any ideas of what could possibly be going on? If you have any questions for me that could help you help me please let me hear them!! Thank you in advance.