I've got intermittent start up problems where I get the bios menu and then Windows loading screen and then sometimes PC will shut down or the dreaded black screen. When this happens the HDD runs continuously (LED on all time). I managed to get into Safe Mode and do a system restore and Windows loaded in Normal Mode so all ok for the moment. But I notice that when only the desktop is running the CPU demand is like the Rocky mountains varying between 10 and 100%. Is this normal?
Also I get delays in keyboard input and what appears on the screen and sound hiccups.
I can't repair as my XP is SP3 whereas my XP disk is SP2.