Windows xp,reboot issues

[greggg]

wont reboot, just goes over and over,tried selecting safe mode and command prompt and now I got nothing coming on screen. Any suggestions please

 

[treefrog07]

Try resetting the BIOS to its default by finding and resetting the CLR_CMOS jumper (on the motherboard, with the power off). After you move the jumper from the default to clear, and back to the default, you may have to enter the BIOS to make any changes you need for your system hardware, e.g., setting the HDD boot-order to the HDD with XP.