The best option at this point is to do a reinstall. However you can also check any of the following for or try the following to see if the system still crashes.
- Unplug all USB devices connected to the machine, including keyboard and mouse.
- Review BIOS settings and check if any changes where made.
- Try and do a check disk using an external tool, it could be a fault on the HDD.
- Try and do a complete memory check.
- Remove any new hardware that may have been installed.
Windows normally blue-screens at boot time due to a faulty driver or a hardware fault. I have had USB hard drives cause the fault, and also had the problem switching the hard drive mode in the BIOS from IDE to SATA.
You can try and get lucky with the pause key, but as far as I am aware there is no way to get to the event logs even through recovery console.
1Boot into safe mode to make the startup and recovery changes in the answers below if your machine is blue screening before you can log in. – squillman – 2009-07-28T15:44:25.030
once again, i have no access to Windows XP so I can't go to Control Panel to uncheck that option – None – 2009-07-28T15:52:39.193
@alexus: You can't even boot in safe mode? – mmyers – 2009-07-28T16:19:16.470