Clean out your temp file. This is how you do it:
Click on Start and then Run.
In the text box in the Run window, type %Temp% and click OK. A folder full of files and other folders will appear.
All of the folders and files you see in this Temp folder are no longer being used by Windows XP and can safely be deleted.
Just select all, send them to your recycle bin, and empty it.
Also try increasing you virtual RAM. This is when after all your RAM is used up, the computer uses the hard drive as additional RAM. This is how you would go about doing that:
Right click on My Computer > left click on Properties > Advanced > Settings > Advanced. Under Virtual memory left click on Change.
Select (left click) on the Drive on wich Windows XP is installed. In most cases this will be Drive C.
Under Drive:
Space available: Select the radio button labeled: Custom size:
To play it safe, in both the Initial (MB)size: and Maximun size: dialogue boxes type 2560 (i.e. allocate 2.5GB for the pagefile) provided you have the free memory space to spare. If you don't have enough free memory available enter the amount of memory you can spare, and meanwhile seriously consider getting a larger Hard Drive.
Mine is set to 4096MB (4GB), max. allowed by XP. This may seem like quite a lot, but the reason for this is that recent games now require a lot more real and virtual memory to function correctly, even if you have 2GB of RAM. Having a larger pagefile size does not hurt performance as such; it only takes up a bit of additional disk space.
After setting the new page file size left click on
OK > OK > OK. Then restart the computer.
I don't suggest pouring any more money into this machine, as just 1 GB of RAM will cost half or a quarter of what a brand-new machine will be. You may need to reinstall XP (go and buy a bag of chips and soda, this may take a while). Don't forget to BACKUP, BACKUP, BACKUP!
If you wish to buy a new desktop or laptop, just e-mail me. You will get something that will blow your mind for $500 for a desktop, and $600 for a laptop. Don't fall for the technical crud, and please don't buy in store.
$500 will get you a core 2 duo, 2 GB RAM, 250-500 GB hard drive, etc.
Feel free to e-mail me if you have more questions, or if my suggestions doesn't work.
Good Luck!
--Anish
P.S. People are saying RAM is cheap. They are right, but however they think that you have DDR2. DDR and SDRAM, which is probably what you have, is very pricy. Believe me, I know. You will most likely have SDRAM, the most expensive. I know, its confusing.