First, you have to find out if there are any network drivers or connections. It seems that XP will always try to connect to old network drives while you’re loading programs or searching for files (XP will also look for network drives when you start your computer). The problem is, you can't see any of this happening while you’re waiting for Windows to work, because it happens automatically behind the scenes.
Typically, the only clue that network connections are being searched for, is the slowing down of the computer. After waiting minutes for a file, folder, or program to load on your computer, you should suspect that Windows is looking for a network connection. The only way to be sure that Windows is performing such an action is to go find it. So, let’s get cracking!
Click on the Start Menu and then click on My Computer. Click on the tools drop-down menu. Select Disconnect Network Drive.
Immediately, you’ll know if you don’t have any network drives (A message box will display “You have no network drives to disconnect”). If you do have network drives displayed, then you need only select the drives that you are no longer using. After you’ve selected the unused drives, click on “OK” to remove them. When that is done, restart your computer.
Windows XP should run quicker this time around. You’ll notice a significant difference in the way your programs load. Best of all, you’ll notice that your files are located and loaded much more quickly.