A computer restarts slowly after you install Microsoft Forefront Threat Management Gateway (TMG) 2010 Service Pack 1 (SP1) on the computer.
Additionally, the following event entry is logged in the Application log:
Notes
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If Forefront TMG SP1 is not installed on the computer, this issue does not occur.
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If you start the Forefront TMG Managed Control service (IsaManagedCtrl.exe) manually, this issue does not occur.
Symptoms
This issue occurs because the IsaManagedCtrl.exe service requires a long time to determine whether the computer can install the BranchCache feature during the restart process.
Cause
Update information
To resolve this issue, install the software update that is described in the following Microsoft Knowledge Base (KB) article:
2288910 Software Update 1 for Microsoft Forefront Threat Management Gateway (TMG) 2010 Service Pack 1
Resolution
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Status
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
