cpu high usage and running slow

How much RAM do you have ???? Which Process is running CPU high ??? http://support.microsoft.com/defaul... Computer Speed and Performance May Decrease When you open, then close programs, programs may not free up RAM memory. That is called "Memory Leak". Restarting computer will clear out its RAM memory. OR install more RAM memory. http://support.microsoft.com/defaul... Description of the Disk Cleanup Tool in Windows XP http://support.microsoft.com/defaul... How to Defragment Your Disk Drive Volumes in Windows XP To have more RAM available at startup, You can do Start, then RUN, then type msconfig Then uncheck items in the Startup tab. To find out what each Startup(or Process) item does or means, and any recommendation as to if you should close the process: http://www.answersthatwork.com/Task... Task List Programs OR http://www.processlibrary.com/ The Process Library Most Virus and Spyware scans are likely to work better in Windows Safe-Mode.

It was slow, or it is slow? Like Chuck said, how much RAM do you have? What's your HDD capacity and free disk space? What's your pagefile set to? "So won’t you give this man his wings What a shame To have to beg you to see We’re not all the same What a shame" - Shinedown

my laptop has 1GB RAM and HDD capacity is 60GB.i got 24GB of free disk space.I can't defrag my laptop because it says access denied.there's a message saying C:\Windows\system32\dfrg.msc

You might try the following on that dfrg.msc file that is in the system32 folder --- http://support.microsoft.com/defaul... How to take ownership of a file or folder in Windows XP OR You try doing defrag.exe in the RUN box. I run such things while in Windows Safe-Mode. Far fewer programs running in the background.

I've defrag my laptop and now it was back to normal. thanks a lot 4 helping.