My computer has the following specs: a Dual Core computer T9600 @ 2.8gHZ, Windows 7 Ultimate 64bit, 4GB RAM, 250GB HDD with about 80GB free. I consider this an above average computer. IThe computer is increasingly slow. Yes, I do have many windows/programs open,: Excel, MS Word, Firefox, IExplorer, CTS T4 trading platform, Acrobat & Outlook....but still the computer is incredibly slow and getting slower. I checked in Task Manager and I noticed the following results for Physical Memory (MB): Total: 4019 Cached: 827 Available: 848 Free: 17 (sometimes as low as 5!!!) CPU usage is averaging over 40% The biggest user of CPU & memory is Firefox. However, even after closing Firefox while the CPU usage reduces, the Physical Memory stats show o change. Can someone provide me some guidance. It seem as if my computer is not properly using memory, otherwise why would the memory stats not change even after closing Firefox? Any guidance on what size/settings I should use for my paging file. Any help would be most appreciated. Thank you.