When attempting to install Sophos Anti-Virus the following error is shown:
Another installation is already in progress. Complete that installation before proceeding with this install.
Sophos Anti-Virus Install Log_yyyymmdd_hhmmss.txt' (located in
C:\Windows\Temp) shows the following message near the end of the log file:
MainEngineThread is returning 1618
First seen in
Sophos Anti-Virus for Windows 2000+
This error is seen if another installation is in progress or has not completed properly.
What To Do
- Open the Task Manager on the local computer (right-click the system tray and select 'Start task Manager')
- Under the processes tab, select any processes named 'msiexec.exe' (there could be multiple entries) and then press 'End Process'.
- Perform the installation once more