Here is another suggestion that you can do in Windows that should help to speed up browsing folders on your computer. This suggestion is for use in Windows XP, but should probably work the same way in most other versions of Windows as well.

Speedup Folder Browsing

You may have noticed that every time you open "My Computer" to browse folders that there is a bit of a delay. This is usually due to Windows automatically searching for network files and printers every time you open Windows Explorer. If you do not want Windows to search for network files and printers, then you can disable this option to increase browsing speed significantly by doing the following steps:

1: Open "My Computer" (Click "Start" then select "My Computer")
2: Click on the "Tools" menu
3:  Click on "Folder Options"
4: Click on the "View" tab.
5: Uncheck the "Automatically search for network folders and printers" check box
6: Click "Apply"
7: Click "Ok"
8: Reboot your computer for the changes to take effect.