Hi, I have installed new Exchange Server 2010 in Active Directory site called Site-B. Site-B has own DC and also GC. Both servers are running Windows Server 2008 Enterprise R2 SP1. After Exchange installation everything worked alright, but when I tried install SP1 for Exchange then setup during installation failed with error that could not start Exchange Services. I used Exchange Management Troubleshooter and I discovered that my problem is written in this Microsoft´s KB: http://support.microsoft.com/kb/2028305 I also found this website: http://blogs.technet.com/b/exchange/archive/2010/02/04/3409289.aspx I followed the instruction-everything in the system is as should be according those manuals, but still have the same problem. ERRORS: 1/ when I tried start EMC or EMS I got this error: VERBOSE: Connecting to myexchangeserver.domain.local [myexchangeserver.domain.local] Connecting to remote server failed with the following error message : The WinRM client cannot proc ess the request. It cannot determine the content type of the HTTP response from the destination computer. The content t ype is absent or invalid. For more information, see the about_Remote_Troubleshooting Help topic. + CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [], PSRemotingTransportExc eption + FullyQualifiedErrorId : PSSessionOpenFailed 2/ When I want to start Exchange services like MS Exchange Information Store etc. I got this error: Windows could not start the Microsoft Exchange Information Store service on myexchangeserver. Error 2: The system cannot find the file specified. EventID is 7000 I get this error everytime when I try start some Exchange service which is down-for example IMAP4, Mail Submition and others. From the main services I have running only SMTP-> MS Transport service. Could you someone give me and idea how I have to fix it, please? Thanks.