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How to disable new Outlook (powershell script) (lemmy.world)

submitted 1 week ago by captcha_incorrect@lemmy.world to c/sysadmin@lemmy.world

7 comments fedilink hide all child comments

I wanted to disable the prompt and button for new Outlook. I found this guide and wrote a few lines of PowerShell to automate it and wanted to share.

# Source https://edi.wang/post/2025/1/20/how-to-stop-automatically-switching-to-new-outlook
$path='HKCU:\Software\Microsoft\Office\16.0\Outlook'

# Remove and create to ensure correct data type
Remove-ItemProperty -Path "$path\Options\General" -Name 'NewOutlookAutoMigrationStage' -ErrorAction SilentlyContinue
New-ItemProperty -Path "$path\Options\General" -Name 'NewOutlookAutoMigrationStage' -Type DWord -Value 1
Remove-ItemProperty -Path "$path\Options\General" -Name 'NewOutlookAutoMigrationStage'
Remove-ItemProperty -Path "$path\Options\General" -Name 'NewOutlookAutoMigrationType'
Remove-Item -Path "$path\NewOutlook"
# Remove and create to ensure correct data type
Remove-ItemProperty -Path "$path\Preferences" -Name 'UseNewOutlook' -ErrorAction SilentlyContinue
New-ItemProperty -Path "$path\Preferences" -Name 'UseNewOutlook' -Type DWord -Value 0
Remove-ItemProperty -Path "$path\Preferences" -Name 'NewOutlookRenudgeStartDate'
Remove-ItemProperty -Path "$path\Preferences" -Name 'NewOutlookRenudgeStartDate'

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[–] un_ax@lemmy.today 1 points 1 week ago* (last edited 1 week ago) (2 children)

Does this work different than the policy key? As far as I know the keys under software\policies are used by both group policy and intune, and honored by windows home editions so I'd expect they'd work more reliably than an outlook config setting.

[–] sylver_dragon@lemmy.world 1 points 6 days ago

Yes, looks to be different registry keys. The Outlook ADMX Template has the settings:

Which should hide the toggle and turn off Microsoft's forced change.

[–] captcha_incorrect@lemmy.world 1 points 6 days ago

As far as I know, group policy changes the registry behind the scenes. I base this only on reading about how to do stuff were there was usually a group policy and reg solution. Anyway, my work computer is not managed so I have to do this stuff myself and I had to setup everything twice (fresh from repair and then I had to reinstall Windows because I messed up the WiFI driver) recently. The new outlook stuff annoyed me so I figured I could do the registry changes as a PowerShell script and share it here.