Deployment fails with Error 1618: Another Installation is already in progress

Version 4



    The following error is encountered either during installation/removal of an update or other software. The Ivanti Patch for Windows deployment logs, the product's Installation log files, and the Window's Event Viewer logs will show the following error:

    Error 1618: Another installation is already in progress




    The Windows Installer process can only run one installation at a time.  Error 1618 indicates that the Windows Installer Service is currently being utilized for another installation or update.




    • Complete the current installation or wait a few minutes for the background installation taking place completes.
    • End the Windows Installer process manually:
      1. Reboot the computer and try installing again.
      2. If the error returns, attempt to find any applications currently installing and close them.
      3. If unable to find an application running updates:
        • Open Task Manager and navigate to the "Processes" tab.
        • Select "Show processes from all users" if it is not already.
        • Locate and end any "MSIExec.exe" entries you see.

    Perform another scan and deployment.


    Affected Products


    Ivanti Patch for Windows 9.3

    Shavlik Protect 9.2