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We can't install - The following product(s) can't be installed at the same time error

Anonymous
2025-04-09T17:59:26+00:00

I am trying to uninstall my current Microsoft Office Suite and install Office 2021 LTSC Standard 2021 via Office Deployment tool (ODT) but I am running into the following error: (Screenshot)

It states:

"We can't install

The following product(s) can't be installed at the same time:

O365HomePremRetail

Standard2021Volume"

We have gone through the Programs and Applications and uninstalled any programs related to Microsoft, as well as typing in various Microsoft application names in the start menu, right clicking and uninstalling from there.

Please advise if you have any information about this error and if any solutions have been found.

Microsoft 365 and Office | Subscription, account, billing | For home | Windows

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2025-04-09T18:24:20+00:00

    Hello JW,

    You can try to uninstall the Microsoft 365 Application manually using the Powershell command.

    Uninstall Microsoft 365 manually using PowerShell

    Remove Microsoft 365

    1. Right-click  Start and select Windows PowerShell (Run as Administrator).
    2. In the Windows PowerShell window, type the following: Get-AppxPackage -name “Microsoft.Office.Desktop” | Remove-AppxPackage
    3. Press Enter. This takes a few minutes. Once it's done, a new command prompt appears.

    Verify Microsoft 365 was removed

    1. In the Windows PowerShell window, type the following: Get-AppxPackage -name “Microsoft.Office.Desktop”
    2. Press Enter. If only a command prompt appears and no additional information, it means you successfully removed Microsoft 365 and you can close the Windows PowerShell window. You can check here for other options as well, if this does not work out. -http://support.microsoft.com/en-us/office/uninstall-office-from-a-pc-9dd49b83-264a-477a-8fcc-2fdf5dbf61d8#officeversion=microsoft_store

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  2. Anonymous
    2025-04-10T14:49:00+00:00

    Hi Joshua,

    Thank you so much. My IT and I were successful at getting past this error message and installing Microsoft properly.

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  3. Siva Shankar 10,975 Reputation points
    2025-04-09T19:33:37+00:00

    Hello ,

    I’m here to help you in resolving your issue

    1: Download and run the Microsoft Support and Recovery Assistant (SaRA) tool using below link

    https://www.microsoft.com/en-us/download/detail...

    2: Go to Microsoft SaRA Tool

    1. Select the option to Uninstall Office.
    2. Follow the on-screen prompts to ensure that all Office 365 and Office apps are completely removed.
    3. Restart your computer after the process is complete.

    After trying above steps, please reach out to me if you have any doubts or issues

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