My computer is suddenly running sooo slowly?

It just started yesterday. Neither AdAware, Spybot, nor Avast has found anything, in normal or safe mode. I have cleared my cache, including the cookies and temp files in Windows, defragged, and run a disk cleanup. And I haven't downloaded anything lately. What else is there??

I'm running Windows 98 on a Dell with a 56k modem.

My computer is suddenly running sooo slowly?pc security

There seems no problem with usage. The problem with Windows is that it slows down with time.

I am also using Win98 and it has become painfully slow in last few years. Infact, I reformatted it several times and still the problem persists.

The problem is actually with Microsoft, believe me.

My computer is suddenly running sooo slowly?symantic

Trojan horse virus=clean it.
simple through it out of the window
Hold the Ctrl butoon, and while holding it hit the Alt button, and while holding these two buttons down, also hit the Delete button. This will open a window that shows you which APPs and Processes are running, In the Processes tab, if there is something that is taking up a lot of memory in order to run, you can try shutting it down, to see if the computer works faster without it running. (you may get a message saying that if you close this program, other programs may not work )...Don't worry about shutting something down that your not sure of. If you get into trouble, just turn your computer off and reboot. Everything will be returned to normal. In addition, you may try going to your main program menu, and click the program ''Start-up'' if you have it. If there is something there that is starting up when you boot up that you do not need, delete it from the start-up menu. The program will still be there if you need it, it just won't start when you boot up. That way, you may save RAM space, if you do not have a lot of memory, and this may speed up your computer. Generally, slow computers mean you've run out of RAM space, and the computer has to use your hard drive to swap virtual memory. Getting more RAM memory will ALWAYS speed up your computer. Good luck.
Get Windows Xp. It runs faster
time to upgrade!!! try stopping programs from starting up at boot, and programs running in the background..
In addition to your already taken steps like cleaning of cache, etc. also see how much free space is available in your C Drive ( I am assuming that your windows is installaed on C Drive).