No bios found

Hello,


I have an acer laptop aspire 5100 and suddenly when i turned it on it came up with an error message saying: \windows\system32\config\system is corrupt or missing. I've tried reboot from cd using home xp edition but it still comes up with \windows\system32\config\system is corrupt or missing. I cant access bios because i cant remember the password for it.

Please help.