Installing TestLeft in Silent Mode

Applies to TestLeft 15.40, last modified on March 17, 2022

In some cases, you may need to install TestLeft in silent mode. In this mode, the installation is performed automatically without any user interaction.

For example, you install TestLeft in silent mode if you need to automate the installation procedure or deploy TestLeft on multiple computers on your network.

You can install TestLeft in silent mode via specific command-line arguments.

Accept the terms of use

By installing TestLeft in silent mode, you confirm that you consent to all license terms and conditions, including:

Run Silent Installation

  1. Deploy the TestLeft installation package on the target computer.

  2. On the target computer, run the installation using the needed command-line arguments. For example:

    <path_to_installation_package>\TestLeft1540_Release.exe -SilentInstall
  3. The installation program will install TestLeft without user interaction.

To run the installation using specific command-line arguments, administrator permissions are required.

Supported Command-Line Arguments

The installation package supports the following command-line arguments:

<TestLeft1540_Release.exe> [<mode> <options>] [ /? ]


Must be one of the following:


Commands the installation program to run in interactive (GUI) mode.


Commands the installation program to run in silent mode.


Commands the installation program to uninstall the product in silent mode.


Commands the installation program to uninstall the product in interactive (GUI) mode.


  • If you specify the -Uninstall or -SilentUnInstall argument, the installation program will ignore the other command-line arguments and uninstall TestLeft.

  • To uninstall TestLeft, use the installation package of the TestLeft version that is currently installed.


The following arguments are optional:


Saves the installation log to the specified folder. For example:

If the folder name is omitted, the log will be saved to the folder where the installation package resides:



TestLeft is installed into the specified folder.


TestLeft is installed by using the specified external installation package (.exe).


TestLeft and all its features are removed from the computer and the installation information is removed from the Programs and Features feature of Windows. Use it if the ordinary uninstallation has failed to remove all product files from the computer.
Get help on the installation

To view information on available command-line arguments, run the installation package with the /? argument:

<TestLeft1540_Release.exe> /?

Any other command-line arguments will be ignored.

Check the silent installation success

In silent mode, the installation wizard shows no messages. You can use the -Log command-line argument to configure the installation to create a log file and write all the progress information to it. After the installation is over, you can examine that log file to learn what was happening during the installation and the installation result.

See Also

System Requirements

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