I am running Windows Server 2008 Standard Edition. Server Manager is giving me errors - it cannot summarize roles or features and Windows Update will not run either. If I try to add features or roles I get the following error: "Server Manager encountered an unexpected error while collecting data about the status of this computer". If I try to check for Windows updates, I receiveerrorcode 800B0100. I also receive the error "Unexpected error refreshing Server Manager: No signature was present in the subject (Exception from HRESULT: 0x800B0100).The server is running fineother than that. Help!

Hi, Since here is the forum for Exchange, we recommend you to use forum for Windows Server 2008 to get relevant help. http://social.technet.microsoft.com/Forums/en-US/category/windowsserver/ Besides, Id like to share article which may helpful to you. Error code when you try to use Windows Update or Microsoft Update to install updates: "0x800B0001" Hope it helps. Xiu