Resolving error windows installer service could not be accessed

By / February 28, 2023

This is caused by a third-party antivirus program interfering with the installation process.
The Windows installer service is the Windows service that manages Windows Installer packages and solutions.
It stores the Windows Installer packages and solutions, and allows you to install the Windows Installer packages and solutions.
If you face any issues with Windows installer service, check out these solutions.

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  • 2. Run a scan to find and fix errors
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    1. Start the Windows Installer Service

    1. Go to Search and enter services.msc in the search bar.
    2. In Device Manager, right-click on the Windows Installer service and select Properties.
      In Device Manager, right-click on the Windows Installer service and select Properties.
    3. Go to the Startup type drop-down menu and set it to Automatic.

    2. Check if Windows Installer Service is enabled

    1. Type services.msc in the Windows Search box and click Run as administrator.
      Type services.msc in the Windows Search box and click Run as administrator.
    2. Scroll down the list of services, locate the Windows Installer service and check if it is enabled. If it is, right-click on it and click on Start.

    3. Verify your antivirus software

    1. 4. Disable your antivirus software
      4. Disable your antivirus software
    2. 5. Disable your firewall
    3. 6. Reinstall the Windows Installer Service
    4. 7. Reset Windows Installer
      8. Reinstall .NET Framework
    5. 9. Install Visual Studio
    6. 10. Restart your computer
      10. Restart your computer

    4. Check your Windows Update settings

    1. Go to Start > type PowerShell > right-click on the app and select Run as administrator.
    2. In PowerShell, type the following command and press Enter: Get-WUServer | fl
      5. If the Windows Update (WU) Server isn’t available, type the following command and press Enter: Set-WUServer -AutoUpdatesEnabled
      6. Restart your PC

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  • 1. Download and install ASR Pro
  • 2. Run a scan to find and fix errors
  • 3. Reboot your computer for the changes to take effect

    • 5. Repair the Windows Installer service

    1. Press Windows Key + R to open Run.
    2. Type services.msc and click OK to open the Services window.
    3. In the Services window, locate Windows Installer service and double-click it to open its properties.
    4. Now, set Startup type to Automatic and click OK to save the changes.
      Now, set Startup type to Automatic and click OK to save the changes.
    5. Now, try installing the app again.

    6. Check if Windows Installer is a valid installation file

    1. 7. Check if Windows Installer services is running and set to Automatic
      8. Perform a repair installation
    2. Check if Windows Installer is a valid installation file
      Check if Windows Installer is a valid installation file
    3. Right-click the Windows Installer file and select Properties
    4. Check if “Valid – Allow Unsigned Drivers” is ticked

    7. Check the permissions of the Windows Installer Service

    1. Open the Search bar, type Services, and click on the relevant search result.
    2. Locate the Windows Installer service and click on it.
    3. On the General tab, the Startup type option should be set to Automatic.
    4. Now, go to the Permissions tab and click on the Edit button.
      Now, go to the Permissions tab and click on the Edit button.
    5. Now, give Full permissions to the user.
      Now, give Full permissions to the user.
    6. Restart your computer to apply the changes.

    8. Check if Windows Installer is blocked by a third-party program

    1. Go to the Windows Installer’s Control Panel and select Add or Remove Programs from the left pane.
    2. Click on Windows Installer from the top panel.
    3. Click Remove on the Windows Installer.
      Click Remove on the Windows Installer.
    4. Restart your computer.
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    9. Check if Windows Installer can stop other programs

    1. 10. Check if Windows Installer can’t be accessed
    2. 11. Check if Windows Installer is stopped
      11. Check if Windows Installer is stopped
    3. 12. Check if Windows Installer isn’t running
    4. 13. Check if Windows Installer service is disabled
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