Microsoft KB Archive/833137

= You receive a &quot;No network adapter was found on the physical computer&quot; error message after you install or upgrade to Virtual PC 2004 =

Article ID: 833137

Article Last Modified on 2/6/2004

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APPLIES TO


 * Microsoft Virtual PC 2004

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SYMPTOMS
When you start Microsoft Virtual PC 2004 after you install or upgrade to Virtual PC 2004, you may receive the following error message on the host operating system:

No network adapter was found on the physical computer. Access to the external network and host will be unavailable to all virtual machines using virtual networking. Virtual machines using virtual networking will still be able to access other virtual machines using virtual networking. To fix this problem, re-enable the Virtual Machine Network Services driver on one or more network adapters or reinstall Virtual PC.



CAUSE
This problem may occur if the Virtual Machine Network Services driver is not installed correctly on the host operating system.



RESOLUTION
To resolve this problem, use the following methods in the order that they are presented.

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

Reinstall the Virtual Machine Network Services driver
To reinstall the Virtual Machine Network Services driver, follow these steps:  Log on to the computer as an administrator. To remove the Virtual Machine Network Services driver, follow these steps:  Click Start, point to Settings, and then click Control Panel. Double-click Network Connections. Right-click Local Area Connection, and then click Properties. Click the General tab.</li> Click Virtual Machine Network Services, and then click Uninstall.</li></ol> </li> To reinstall the Virtual Machine Network Services driver, follow these steps: <ol style="list-style-type: lower-alpha;"> On the General tab of the Local Area Connection Properties dialog box, click Install.</li> In the Select Network Component Type box, click Service, and then click Add.</li> In the Select Network Service dialog box, click Have Disk.</li> Click Browse, and then locate the following folder:

C:\Program Files\Microsoft Virtual PC\Utility\VMNetSrv

Note This is the default location of the VMNetSrv folder in Virtual PC 2004.</li> Type VMNetSrv.inf in the File name box, and then click Open.</li> Click OK, and then click OK.</li> Make sure that Virtual Machine Network Services appears in the list of installed networking components, make sure that the check box next to Virtual Machine Network Services is selected, and then click Close.</li></ol>

Note If these steps do not resolve the problem that the &quot;Symptoms&quot; section of this article describes, go to the next method.</li></ol>

Reinstall Virtual PC 2004
To reinstall Virtual PC 2004, follow these steps: <ol> Log on to the computer as an administrator.</li> To remove Virtual PC 2004, follow these steps: <ol style="list-style-type: lower-alpha;"> Click Start, point to Programs, and then click Control Panel.</li> Click Add or Remove Programs.</li> Click Microsoft Virtual PC 2004, and then click Remove.</li> Click Yes when you are prompted to confirm the removal.</li></ol> </li> Restart the computer.</li> <li>Click Start, point to Programs, and then click Control Panel.</li> <li>Double-click Network Connections.</li> <li>Right-click Local Area Connection, and then click Properties.</li> <li>Click the General tab.</li> <li>Make sure that Virtual Machine Network Service does not appear in the This connection uses the following items list.</li> <li>Run the Microsoft Virtual PC 2004 Setup program to reinstall Virtual PC 2004.</li></ol>

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in Virtual PC 2004.

Additional query words: vpc2004 vpc

Keywords: kbfix kbprb KB833137

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