benfryc

i have already replaced the hard disk twice. the problem doesnt seem to get fixed

I've been having this problem off and on for the past year or so with my XP machine. Sometimes when I boot i get an error message that says: "/system32/ntoskrnl.exe is missing or corrupt. Please reinstall this file." I can get this message a whole bunch of times. It forces me to reboot. And sometimes I can get XP to load and there are no problems. Also, somstimes I get the error: "Disk read error. Press Ctrl+Alt+Delete to restart" I dont know why this problem occurs. Sometimes I need to reinstall windows. Sometimes I can just restart the machine a whole ton of times and it will work. Anyway, the machine is a custom built one. Here are my specs, MoBo: N-force 2 CPU: AMD Athlon XP 2600+ Ram: 2x 512 MB DDR Graphics card:Nforce FX 5700 Ultra 128 MB OS: Win XP Pro SP 1 Any help would be great.