Unable to Install Forefront TMG – “A computer restart is required” warning message

Issue: Consider a scenario where you are not able to install Forefront TMG 2010 with the error message below:

image

Note: The problem persists even after restart the server.

Cause: this issue can be caused due a Windows Installer problem, in order to fix that review the article How to resolve Common "Windows Installer" Problems. For this particular problem the resolution was to delete the PendingFileRenameOperations from HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager. After that it was possible to successfully install Forefront TMG 2010.

Author

Junaid Ahmad Jan

Support Engineer,

Microsoft CSS Forefront Security Edge Team

Technical Reviewer

Yuri Diogenes

Sr Security Support Escalation Engineer,

Microsoft CSS Forefront Security Edge Team