To solve this issue, follow one of the options below:
Primary solution
- In the registry, navigate to:
<computercode>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\</computercode>
- Back up the registry key.
- Delete the PendingFileRenameOperations registry value from the right pane.
- Install the software without restarting the computer first (Restarting the computer may result in the registry key being placed back in the registry before installation.)
- Restore the registry key from the backup location.
Note: If you do not find the PendingFileRenameOperations registry value in the location above, this error message can be generated if the PendingFileRenameOperations registry value exists in the following location(s):
<computercode>HKEY_LOCAL_MACHINE\SYSTEM\ControlSetXXX\Control\SessionManager\</computercode>
Secondary solution
- Look at the registry value to see what applications are pending.
- In the registry, navigate to:
<computercode>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\PendingFileRenameOperations</computercode>
- Locate all entries with a status of "Pending."
- Rename the value of that entry, placing a "2" on the end of PendingFileRenameOperations.
- Restart the computer.
Error: "...pending system changes that require a reboot" when installing Endpoint Protection
https://support.symantec.com/en_US/article.TECH95608.html