Big Frank, David has given you good advice.
You don't say what daily "housekeeping" you do on your PC.
Have you got www.ccleaner.com
This is a great junk cleaner. Download it and run it every few days.
Do you use the FREE "disk cleaner" which is on your PC?
Perhaps you have forgotten to use it every few days. You get it by hitting start, all programs, accessories, then system tools and scroll to "disk cleanup". Just press it and let it scour your hard drive. It might take a minute or two but you will be surprised how much it can clean up.
On my PC it cleans about 200000 K
Aside from clearing out clutter the main reason for slow PC's is an overabundance of programs on your startup.
First of all get a good startup cleaner, one that is user friendly. The best FREE one I've seen is at:
www.windowsstartup.com
Just carefully read the instruction under help and click off the programs you don't need at startup.
Next is download :
www.mlin.net/startupmonitor.shtml
When you go to this site you will also notice "startup monitor" which is a wonderful FREE program that pops up an OPTION window every time a new program appears on your screen.
It simply asks you IF you want that program to startup every time you log on or do you NOT want it to startup every time you log on.
The answer is, of course NO because you don't want most of the programs you use every day to be on startup.
Everyone in our computer club (600 members) uses these wonderful FREE programs and you should too.
You do need your anti-spytware and virus and as well your anti-spam program so you would answer YES to these types.
Finally you should defrag once a week.
If you do all these things as well as "remove" as many non used programs (via your control panel and "add and remove" icon) I am sure your PC will speed up.
I assume you have 2 gigs of Ram. If you haven't then you should ask your local computer tech or dealer how much he would charge to upgrade your PC to that.
Ram is SOOOOO cheap to-day you can't afford not to upgrade. For example if you log in to
www.egghead.com
you will see that they are offering 4 gigs of Ram for $46.99 !!
That cost $200 a year or so ago.
2 Gigs of Ram is only $21.00 at the same site !!
Finally here is a FREE program that will tell you exactly what RAM specs you have on your PC and what you need to ask for if you buy an insert of Ram to fit your mother board. It is at:
www.crucial.com
Much good luck and let's hear from you for any help we can give.