Why the Hell my computer is always very slow? even if I have 1GB of RAM.?

I looked at my windows task manager and the commit charge is 2427M/2521M. I have only 21 processes on the processes tab and 782mb free RAM. When I open Firefox, a dialog box says "Virtual Memory is low" and then freezes but I have a lot of free physical memory. I tried to raise up the pagefile to 3000mb, and when I rebooted the commit charge is 3854M/3911M. I also defrag the drive and I can't run antivirus because of that darn commit charge. I ran msconfig and load basic drivers only and uncheck startup programs and still the same. I tried safemode and still same commit charge. CPU when idle is 0-4%. Do you think I have a faulty pagefile.sys and how do i delete it and make a new one. I am running windows xp pro sp2. CPU is Pentium 3 Xeon 32bit. My computer is 4yrs old.

Why the Hell my computer is always very slow? even if I have 1GB of RAM.?kawasaki

Give Spybot Search and Destroy a try, to get things rolling in terms of cleaning things up - because it definitely sounds like you have a major spyware issue.Run it a few times, in both safe and regular modes to clean things out.

Then you may want to go through it with a few other anti-spyware programs. I'd recommend the following - AVG anti-spyware, A-squared, and Microsoft Defender. Use those as you did Spybot S%26D. Then use something call CCleaner, which will clean your drive of a lot of junk (unused files and the like) and bad registry settings.