Processes in Microsoft 365 Insider for installing preview builds, activating subscriptions, and keeping apps up to date with the latest Insider features.
Thank you for your feedback and we are sorry to hear you are having trouble. To uninstall Office from the Store, got to Settings - Apps - Apps & features - Microsoft Office Desktop Apps - Uninstall.
If for some reason the machine is in a bad way and you need to be more aggressive about the uninstall. From a PowerShell command line.
"(Get-AppxPackage -Name Microsoft.Office.Desktop).Dependencies | Remove-AppxPackage"
then
"Get-AppxPackage -Name Microsoft.Office.Desktop | Remove-AppxPackage"
That will typically throw an error if everything is already removed.
Then to verify that it is indeed removed, this command should return nothing.
"(Get-AppxPackage -Name Microsoft.Office.Desktop).Dependencies"