Computer Maintenance:
Depending on how much you use your computer, you should run Disk Cleanup, ScanDisk, and Disk Defragmenter every 2 to 4 weeks, more often if you visit many different web sites, or do a lot of downloading, installing, or uninstalling.
Please remember, try to turn off any Screensavers and Antivirus programs before doing any of the following.
Disk Cleanup
You can run Disk Cleanup by clicking on Start, then Programs, then Accessories, then System Tools, then on Disk Cleanup.
Once the program starts, you will need to select the hard drive (Drive C: for most users), then click on OK. On the popup dialog box, check all the small boxes there (selections), then click on OK. Your computer will automatically remove all temporary files, and empty your Recycle Bin for you too.
This will remove unnecessary files taking up Hard Drive space.
ScanDisk
Another suggestion is to run ScanDisk, and select a thorough scan.
This will take some time to do, and you should disable or turn off programs running in the background (right click on each of the programs' Icons in the lower right hand corner of your screen and exit or disable them), and then click on OK,
Disk Defragmenter
The last step in computer maintenance is to Defragment your Hard Drive.
Again, you will need to disable any programs running (see above) before you defragment your hard drive, especially Antivirus programs.
It is best to do this maintenance just before bedtime, as it can take some time to accomplish it.
Follow the above directions to get to ScanDisk, but this time, click on Disk Defragmenter.
Select the Hard Drive you want to speed up (Defragment), which for most users is Drive C:, and click on OK.
By the next day, your computer should be operating much smoother, and much faster.
MSCONFIG
You can use this program, which is included in Windows 98 to create a backup of your files, and also to restore your files.
Just click on Start>Run type in MSCONFIG and click ok. When you see the program start, at the bottom of the dialog box, you will see a button labeled Create Backup. Just click on it and back up your files.
To restore your files, run MSCONFIG again and click on Restore Backup, and restart your computer.
While this procedure isn't completely effective, it can repair many problems. It can also be used to disable some programs the automatically run at startup, like Reminder.exe (which I recommend disabling). Be careful disabling any of these as your computer might not be able to start if you make a mistake. In that case, you would have to run MSCONFIG while in Safe Mode to correct the problem.When cleaning your computer, use a soft, clean cloth, and avoid harsh chemicals that can damage plastic's. See your computer manual for proper care for cleaning.