You may have some software issues compounded by hardware degradation. If you had malware issues Panda anti-virus would of picked up on it. Memory has been known to go bad also but my hunch is the motherboard.
Oh, I defrag my HD every 3-4 days to weekly.
I use SYS MECH TO RECLAIM MEMORY FROM XP’S HORRID MEMORY LEAK 1-2 TIMES EVERY 24 HOURS. Whenever my system has been on several hours—it needs memory reclaimed.
THAT CAN HELP the keying problem. Seemingly not 100% of always, though.
You may have some software issues compounded by hardware degradation. If you had malware issues Panda anti-virus would of picked up on it. Memory has been known to go bad also but my hunch is the motherboard.