These are automatic tools and not trustworthy enought on their own so seek help with what they find:
I have XP OS, 1024 RAM, Dell 4550.
Recently I am having problems with programs & internet links freezing. Then I am unable to shut them down, even going through the task manager.
My only option is to restart the computer. My Microsoft updates are automatic. I have Norton antivurus. I have checked adware with several free programs. I have scanned the disk & defragged.