Symantec Installation Manager - SIM errors and will not open.


Article ID: 157794


Updated On:


Management Platform (Formerly known as Notification Server)


Unable to open Symantec Installation Manager (SIM).

Getting a Windows error when trying to open SIM.  "Another installation is requiring a reboot to complete changes to the system. You must reboot your computer before you can use Symantec Installation Manager, then Launch Symantec Installation Manager again."


There is a value left in a registry key that is trying to make changes to the system but upon reboot these changes are not made and remain in the registry.  Most likely there is a driver that has not finished loading.  Looking at the PendingFileRenameOperations data will determine what is causing the issue.


*Note* This is only a workaround. These resolutions are from

! Please make sure to backup the registry before making any changes to it !

These steps will usually allow for SIM to open:

1.  Open the registry - Start > Run > Regedit.

2.  Navigate to HKLM\SYSTEM\CurrentControlSet\Control\Session Manager.

3.  Rename the Multi-String Value > PendingFileRenameOperations to PendingFileRenameOperations1.

Once the registry key is renamed SIM will open.

When you are finished with SIM change the registry key back to PendingFileRenameOperations to prevent new registry entries upon reboot.


If the above does not fix the issue check the following other registry locations to see if they may be causing the issue:

1. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce (Verify that this subkey is empty)

2. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx (Verify that this subkey is empty)

3. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress (If the InProgress key exist make sure to remove it)


Applies To

Symantec Management Platform 7.x