06 August 2012

Getting rid of “reboot from a previous installation” message

Sometimes you might be unable to install some software with the following message:

A reboot from a previous installation is pending. Please restart the system and rerun setup.

This example is from Exchange Management Tools installation.

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First you should try reboot (sometimes twice) and if this doesn’t work, look at the registry hive

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager

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The key PendingFileRenameOperations should be normally not present. If it’s there, remove it. Then you can run your setup again and this time successfully.

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