How to completely uninstall InstallShield 2020 R1

InstallShield is the industry standard for authoring high quality Windows Installer, InstallScript–based installations, MSIX package and Microsoft App-V packages.

Are you having trouble uninstalling InstallShield 2020 R1?
Are you looking for a solution that will completely uninstall and remove all of its files from your computer?
This guide will provide you with detailed instructions and all the information that you require to remove and uninstall
InstallShield 2020 R1.

What usually makes people to uninstall InstallShield 2020 R1

It seems that there are many users who have difficulty uninstalling programs like InstallShield 2020 R1 from their systems. Some experience issues during uninstallation, whereas other encounter problems after the program is removed.

These are the main reasons why InstallShield 2020 R1 is uninstalled by users:

  • The program is not compatible with other installed applications.
  • The program crashes or hangs periodically/frequently.
  • The program is not as good as the user expected.
  • The program is being re-installed (uninstalled and installed again afterwards).
  • The program is regarded by the user and/or some websites as a potentially malicious.
  • The program is not listed in the Windows Settings or Control Panel.
  • After removing the program, some of its related processes still run on the computer.
  • Some traces of the program can still can be found on the computer.
  • Removing process running for a long time and does not come to the end.

Possible problems that can arise during uninstallation of InstallShield 2020 R1

  • The program’s built-in uninstaller does not start or does not operate properly.
  • A file required for the uninstallation to complete could not be run.
  • Due to an error, not all of the files were successfully uninstalled.
  • Another process is preventing the program from being uninstalled.

There could be other causes why users may not be able to uninstall InstallShield 2020 R1. An incomplete uninstallation of a program may cause problems, which is why thorough removal of programs is recommended.

How to uninstall InstallShield 2020 R1 completely


Method 1: Uninstall InstallShield 2020 R1 with a third-party uninstaller.

  • 1

    Download and install Revo Uninstaller Pro - 30 days fully functional trial version

  • 2

    Start Revo Uninstaller Pro and open the module "Logs Database"

    screenshot of logs database
  • 3

    In the Search field type "InstallShield 2020 R1" and you will see all logs of "InstallShield 2020 R1" in the database compatible with your Windows Version.

  • 4

    Select the appropriate log by version from the list and press the "Uninstall" button from the toolbar

    screenshot of logs uninstall
  • 5

    You will see few popping up windows showing the download and import of the log to your Revo Uninstaller Pro and then the main Uninstall dialog that shows the progress of the uninstall of InstallShield 2020 R1.

Method 2: Uninstall InstallShield 2020 R1 via Apps and Features/Programs and Features.

  • 1

    Open the Start Menu and type Apps and Features

    screenshot of apps and features
  • 2

    Look for InstallShield 2020 R1 in the list and click on it. The next step is to click on uninstall, so you can initiate the uninstallation.

    screenshot of apps and features

Method 3: Uninstall InstallShield 2020 R1 with its uninstaller.exe.

Most of the computer programs have uninstall.exe or uninst000.exe in their installation folders. You need to execute these files in order to start the uninstallation process. Here are the steps:

  • 1

    Go to the installation folder of InstallShield 2020 R1. Most of the times it is located in C:\Programs files or C:\Program files(x86)

  • 2

    Locate uninstall.exe or uninst000.exe

    screenshot of uninstall.exe
  • 3

    Double click the file to start the uninstallation process.

Method 4: Uninstall String with Run

  • 1

    Hold the Windows + R keys to open the Run command.

    screenshot of run command
  • 2

    this uninstallation string
    "C:\Program Files (x86)\InstallShield Installation Information\{3093EA95-7FB2-43A9-BB1E-BD6AD5D4308A}\InstallShield2020R1PremierComp.exe" -remove -runfromtemp

    and paste it in the Run command window and click OK.

  • 3

    Follow the instructions to complete the uninstallation.

Available logs

InstallShield 2020 R1 26.0 on Windows 10 64-bit

InstallShield 2020 R1 26.0 on Windows 10 32-bit

InstallShield 2020 R1 26.0 on Windows 8.1 64-bit

InstallShield 2020 R1 26.0 on Windows 8.1 32-bit

InstallShield 2020 R1 26.0 on Windows 7 64-bit

InstallShield 2020 R1 26.0 on Windows 7 32-bit

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