Hi My Father's PC will not boot up. It starts and gets to the windows screen and then restarts itself, gets to the windows screen etc and goes around in a loop again.
I would appreciate any suggestions - I am not very technical but am willing to have a go if anyone can help.
Like mattie said, see if it boots into Safe Mode. If it still resets, it could be a memory problem.
I fixed someone's PC recently where his kids (he blamed the kids - it could have been him!) had jammed a USB device in too hard, snapped the plastic that mounts the connections so they touched the outer part of the USB socket and it kept causing it to reset...
As with all PC problems, try one thing at a time...