Sophos Anti-Virus custom action install log shows the message: Failed to grab execution mutex. System error 258.

  • Article ID: 113897
  • Updated: 20 Feb 2015
break_fix

Symptoms

Sophos Anti-Virus custom action install log, located in the folder C:\Windows\Temp\, shows the following error...

Failed to grab execution mutex. System error 258.

Known to apply to the following Sophos product(s) and version(s)
Sophos Anti-Virus for Windows 2000+

Cause

This error can been seen due to one to the following reasons:

  • Msiexec.exe process is already running on the machine
  • The registry string PendingFileRenameOperations is currently populated and the computer is waiting to be restarted.

What to do

Open the Windows task manager and kill any remaining msiexec.exe processes running. Attempt the install again.
If the error remains reboot the computer and run the Setup.exe file again.

A further reboot, after installation, may also be required.

 
If you need more information or guidance, then please contact technical support.

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