System specs: Manufacturer: Dell Service Tag: 4JSRJ81 Model: Dimension 5100 Original RAM: 1 GB Current RAM: 512 MB DDR2 Virtual Memory: Custom settings: 2-383 MBs No. 1 HD 2-382 MBs No. 2 HD. Video Card: Stock - All I know is that it is a ATI graphics card, I don’t know how to find the model number. Motherboard: Stock – Same thing only I don’t even know the brand. Main Hard Drive: 144 GBs - 95.2 GBs free - File System NTFS Second Hard Drive: 69.8 GBS 42.1 GBs free Processor: DIM5100 Intel Pentium 4 CPU 2.80GHz 2.79 GHz. When I first started to try to speed up the computer for my mom it had one problem/symptom. If a web browser was left up the virtual memory would continue to increase in size until it had increased from 400 MBs to around 900 Mbs. It rarely got above 900mbs because by the time it reached 900 my mom would ask me to fix it again. Once I shut down the browser windows the pf usage would hold steady for a while then sharply drop down to 320mbs. Sometimes it would just be slow overall and I knew of two things to speed it up. Defragmenting the hard drive and deleting cookies. Eventually I learned how to delete flash cookies and I added that to my list of fixes. Sometimes all it took was deleting cookies sometimes more. Since then I have added a one item to my repertoire, cleaning the register via ccleaner. These fixes have always been temperamental; a couple days later I would have to do it again. Now none of these work. They might take the edge of the slowness but I have still seen faster snails. Can’t have more than one application running at a time or computer is too slow to use. Recently if anything is left open the computer will slow down. Task manager shows plenty of available resources. If the computer is slow and I try to close a program it will normally stop responding. Recently I received a BSOD from my computer. I will attach a picture of the computer screen to this post. It got so slow recently that my mom gave me permission too buy 2 gbs of ram for her computer. So if that is the solution I can do it but if there are any other possibilities I would like to check them out first. It is so slow that I have become accustomed to taking naps in during the response time the computer takes to do anything. Once something a program is running and I have been using it for a while without any changes between programs it runs just fine. It responds quickly to any commands within the program. It is just when I try to open a program, switch between programs or close a program that it is slow. Note: I have ran memtest86+ for about 10 hours overnight and it detected no errors. Also when I run the hard drive defragmenter the diagram of my hard drive usage is normally terrible. On average I deframent the hard drive weekly each time the diagram shows 1/3 to ¼ of my files as corrupted. Could this be bad RAM? I updated my graphics driver within the last week so I doubt that is the problem. Any help would be great I have tried googling my problem to no avail. Even if you (a reader of this post) don’t know how to fix this, could you let me know if this is definitely not a RAM issue? Thanks, MathMartian P.S. this post has been edited. My previous version wasn't very well written.