A. In Windows 2000 to upgrade to multi-processor you just need to change the computers driver as follows:

1. Right click on 'My Computer' and select Properties
2. Select the Hardware tab
3. Click 'Device Manager'
4. Expand the 'Computer' branch and right click on the computer (e.g. MPS Uniprocessor PC)
5. Select the Driver tab and click 'Update Driver'
   Click here to view image
6. Click Next to the hardware wizard
7. Select 'Display a list of known drivers' and click Next
8. Select the multiprocessor system and click Next
   
9. Click Next to the confirmation
10. The device driver will be updated and click Finish to close the wizard
11. Click Yes to restart the computer

If you wish to switch from Multi to Uni follow the same procedure.