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App-Uninstall

Uninstalls Windows applications installed at the HKLM registry level, regardless if they're .msi or .exe.

Installation

Requires an administration account to run this code in a powershell terminal; however a seperate .bat file can be created to execute the following code without a Powershell terminal:

powershell.exe -ExecutionPolicy UnRestricted -File %~dp0file-name.ps1
pause

Note: Ensure both .bat & .ps1 files reside in the same file directory or folder.

Usage

Script can be used in a Endpoint Configuration Manager to batch uninstall legacy or unwanted applications in a large enterprise environment that manages many computers or if a domain-joined user needs to remove a locally installed application on their computer.

Features

Script performs the following at the Windows registry's (HKLM) Local Machine level:

  • Tests if an application is installed, outputting the uninstall string and its location through the -Search switch.
  • Will uninstall multiple versions of the same application, even if an application's AppData is found on different user profiles through the -Credential switch.
  • Will re-read the machine's registry to ensure there are no false positives with an application's removal.
  • If a .msi's uninstall switch is set to /i, the script will replace with the appropriate /x switch.

Etcetera

Please make use of the "helper" code built-in to the script to learn more about syntax and view examples.

  • Use the following command:
Get-Help C:\file-dir\file-name.ps1 -full