Upgrade from a uniprocessor to a multiprocessor computer

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To upgrade from a uniprocessor to a multiprocessor computer

  1. Open Device Manager.

  2. Double-click Computer.

  3. Right-click the computer model, and then click Properties.

  4. On the Driver tab, click Update Driver. This starts the Hardware Update Wizard.

  5. Click Install from a list or specific location, and then click Next.

  6. From the Please choose your search and installation options page, click Don't search. I will choose the driver to install, and then click Next.

  7. From the Select a Device Driver page, click the appropriate computer type from the Models list.

  8. Click Next, click Next again, and then click Finish.


  • Upgrading from a uniprocessor to a multiprocessor computer can improperly disable your hardware and cause your computer to malfunction or become inoperable. Upgrading should be done only by users who have expert knowledge of computer hardware and hardware configuration settings.


  • To perform this procedure, you must be a member of the Administrators group on the local computer, or you must have been delegated the appropriate authority. If the computer is joined to a domain, members of the Domain Admins group might be able to perform this procedure. As a security best practice, consider using Run as to perform this procedure.

  • To open Device Manager, click Start, click Control Panel, double-click Administrative Tools, double-click Computer Management, and then click Device Manager.

Information about functional differences

  • Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.

See Also


View information about a device driver
Update or change a device driver
Device Manager overview
Using the runas command with MMC