You might receive the following error while installing Avaya Workplace Client for Windows:
Another installation is in progress. You must complete that installation before continuing this one.
Cause
This error indicates that the Windows Installer Service is currently being utilized for another installation or update at this time. The Windows Installer process can only run one installation at a time. Complete the other installation or wait a few minutes for the background installation that is taking place to complete.
Solution
Procedure
Reboot the computer and try installing again.
If the error returns, attempt to find any applications currently installing and close them.
If you are unable to find an application that is running updates, open Task Manager and go to the Details tab.
Locate and end any msiexec.exe entries that you see.
