Realy old, but realy handy.
How to show hidden device in Windows Device Management
1. Click Start, click Run, type cmd.exe, and then press ENTER. If using Windows Server 2008 and newer, Run As Administrator.
2. Type set devmgr_show_nonpresent_devices=1, and then press ENTER.
3. Type Start DEVMGMT.MSC, and then press ENTER.
4. Click View, and then click Show Hidden Devices.
5. Expand the Network Adapters tree.
6. Right-click the dimmed network adapter, and then click Uninstall.
When you get the error shown below, it might be wise to check the file âC:\Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportManager\RSWebApplication.configâ?
Be sure that ReportServer is in between <ReportServerVirtualDirectory></ReportServerVirtualDirectory>.
After an IISRESET everything should work!
When you install SCVMM 2008 on a Domain Controller you might get the following error message:
“Error (2927)
A Hardware Management error has occurred trying to contact server dc01.CONTOSO.local.
(Unknown error (0×80338104))
Recommended Action
Check that WinRM is installed and running on server dc01.CONTOSO.local. For more information use the command “winrm helpmsg hresult”.”
The reason that this error message is generated is because the computer account DC01 is not added to the local administrator group on that server because this group does not exists on a Domain Controller.
The solutions for this error is to add the DC01 computer account (CONTOSO\DC01$) to the “CONTOSO.LOCAL/Builtin/Administrators” group via the dsa.msc. After a reboot or a logoff/logon the error message should have disappeared.
As it is possible to install SCVMM 2008 on a Domain Controller I would not recommend it. Let say, it not a Microsoft Best Practice. 
Microsoft has a KB article (KB969164) about the message “Needs Attention” but this article does not describes the situation when you install SCVMM 2008 on a Domain Controller.
Hopefully this will resolve your issue, if not please let me know in the comments so I can update the posting! Cheers!
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