I have been working on this Dell Presario 700 for about two weeks now. The computer was originally locking up which is why it was put in my hands. I decided to restore the computer with the Restore Disks. It ran beautifully. I started doing the Windows updates and it started freezing again. After many restores, I have found that when I install the KB826939 Update Rollup 1, this is when the freezing occurs. I have installed all other updates and the computer works like a charm. If I install this update, it locks. Also, the Security Update, KB825119, won't install. Any ideas why? I haven't found any info about this at Microsoft or here. Thanks in advance.