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Epic Games Launcher Error with Windows 10 & Windows Installer Service - Error Msg "The Windows Installer Service could not be accessed."

Anonymous
2021-01-23T16:25:59+00:00

When I launch EpicInstaller-10.19.2 I get the following error (see below) then the Epic Installer stops and finishes prematurely.

The Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode, or if the Windows Installer is not correctly installed. Contact your support personnel for assistance.

Any ideas how to get around this error? 

I am running Windows 10 Home (version 20H2) on a brand new Gaming PC using AMD Ryzen 5 3600 6-Core Processor

Windows for home | Windows 10 | Gaming

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  1. Anonymous
    2021-01-28T18:20:16+00:00

    Hi,

    Thank you for writing to Microsoft Community Forums.

    I understand that you are facing issues with Windows Installer service on your PC. I will certainly try my best to assist you with the issue.

    I would like to know, if you face the same issue when installing applications using .exe file.

    Meanwhile, I would suggest you to follow the suggestions mentioned below and see if that helps.

    Method 1: Restart Windows Installer service

    Try re-starting Windows Installer service and see if that helps.

    1.     Press Windows key + R. This will open Run. Alternatively, you can go to Start and search for ‘Run’

    2.     In Run dialog box, type services.msc and hit Enter.

    3.     Now look for Windows Installerservice

    4.     Right click on the service and click on Start

    Method 2: Re-register Windows Installerservice

    Try re-registering Windows Installer service and see if that helps.

    1.     Press Windows key + R. This will open Run. Alternatively, you can go to Start and search for ‘Run’

    2.     In Run dialog box, type MSIEXEC/UNREGISTERand hit Enter.

    3.     Once again press Windows key + R. This will open Run. Alternatively, you can go to Start and search for ‘Run’

    4.     In Run dialog box, type MSIEXEC/REGSERVERand hit Enter.

    Method 3: Run System File Checker

    Try running System File Checker and DISM commands and see if that helps. Refer the article Using System File Checker in Windows 10

    Let us know how it goes, if the issue persists, we will certainly assist you further.

    Regards,

    Prakhar Khare Microsoft Community – Moderator

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