Hmm, well there is always the OS. You can clean up temporary files and defrag your HDD. There is also Freeing Resources. Other than that there isn't much you can do. If it is getting really slow even after that it's time to upgrade. You'll have to one day.
Well, what are your comp specs and what OS are you running? Their is only so much you can do to increase a comp's speed without improving its hardware.
Do what Razor said and running a spyware scan using adaware would also do some good if you dont do that.
Getting a new hard-drive can help out. RAM is the cheapest way to go unless you have a really old processor that can be upgraded cheaply. And if your running windows 98 I don't believe it recongnizes over 128MB or 256MB, but I could be wrong since I stopped using 98 and never had more then 128. You should def post your specs and your/your parents credit card number.
(It was a longshot, I know)
edit. Your fast, yeah def more RAM :thumb: but find out your Motherboard so we can see if you can get a new processor. And you should really look at getting a new hard-drive, A system that old and bare-bones probably has something very slow.
Well for one, running themes on your computer will slow it down dramatically, and even though Windows XP is a great OS, It really doesn't run well on anything under 1Ghz and ~256mb Ram. Windows 98SE or Windows 2000/NT would be better bets for having a faster system.
>>And if your running windows 98 I don't believe it recongnizes over 128MB or 256MB
It recognizes those numbers. I had 192 and it recognized that.
You can also set windows to run for best performance under control panel/system/advanced tab/settings for performance, select adjust for best performance. It will disable your theme though and set it to look much like win 98.
Disable the themes, disable the wallpaper, use smaller icons, reduce the color depth/resolution, close/uninstall any unneeded programs (and drivers), clean your HD & defrag it. If that doesn't help enough, try with an 'older' OS, and if also that is not enough, then it's time to buy better hardware.
Not sure how much memory WinXP uses compared to win2k but with all the extra stuff I'm thinking it is more at least (I'm a win2k freak myself, even though I have 512meg ram). If you don't want to switch you should at least disable as many services as possible, use blackvipers guide: http://www.blackviper.com/WinXP/servicecfg.htm
If you click on any of the services in his guide you'll get a more detailed explanation.