I have tried searching for this solution and can’t find one. I have a problem on one of my computers at work. It is a Dell. I am running XP Pro with SP3. We have very little installed on the machine but it runs all day, everyday. We started that computer and after it booted up the blue screen of death came up. I got the following error: Page Fault in Non Paged Area with the following string: (0x00000050 0xFF14E000 0x804E51BB 0x00000000) I restarted the computer to see if it was flook, it is not. I then tried to start in “safe mode”. The first time it worked well. I thought that it was ok to run in safe mode so I shut the machine down. I restarted the machine and opened up the diagnoses partition that dell installs and ran all the tests. They all passed. I also ran check disc and that passed as well. I went online to research my error. It would appear to be related to my RAM. I found another forum that said it may be related to spyware. It said to start in safe mode and rename a few files if I find them. I tried to boot in safe mode but the process hung at “mup.sys”. By “hung” I mean the line of processes never continued and after a bit the lights stopped flashing. So I researched that. I was unable to find a way around that. The closest I came to a solution was to disable my USB controllers or unplug all USB devices prior to booting. I can’t do that because my keyboard is USB and when I tried, the keyboard would not work and I could not push F8. I tried to be faster then the computer by selecting “safe mode” and then unplugging the keyboard, no dice. My next thought is to open the machine up and try moving the dim stick to the other slot. (According to my BIOS I have 2 slots, but one stick). I also came across a program to run to test my memory. I restarted just now in the normal mode. Still crashes. My question is this, what is wrong with this machine?