Windows 10: Automatic Installation of New Outlook and How to Manage It

Automatic Installation of New Outlook on Windows 10: What You Need to Know

This week, Microsoft made headlines by announcing the automatic installation of the new Outlook application on Windows 10 systems. For users and administrators who prefer not to adopt this change, specific adjustments via the Registry and PowerShell are required to block the new Outlook client. Be aware that these modifications can only be implemented post-installation.

With plans to phase out the classic Outlook application, Microsoft has already discontinued its Mail and Calendar apps, transitioning users to the new Outlook client. Responses from users and organizations have been mixed. Proton, a well-known provider of secure email services, criticized the new Outlook in the past, branding it as part of Microsoft’s increasing data collection agenda. Concerns also arise over the new app’s features, with some feeling it is lacking compared to its predecessor, and its introduction of advertisements hasn’t been well received either.

Essential Installation Details

The new Outlook will coincide with the upcoming February 2025 security updates.
The scheduled update will be released on February 11, 2025.
A preview update featuring the new client will be available starting January 28, 2025.

Inescapable Installation of New Outlook

Microsoft has confirmed that there is no means to prevent the new Outlook from being installed automatically. If your system receives the February 2025 security updates, the new Outlook will accompany it. Future cumulative Windows updates will also include this application.

Although administrators can uninstall and subsequently block the new Outlook, they can only do so after the initial installation. Here’s how you can remove and prevent its reinstallation:

Step-by-Step Instructions for Removal and Blocking

Removing New Outlook via PowerShell

Access the Start menu.
Type PowerShell into the search bar.
Right-click on PowerShell and select Run as administrator.
Respond affirmatively to the security prompt.
Enter the command: Remove-AppxProvisionedPackage -AllUsers -Online -PackageName (Get-AppxPackage Microsoft.OutlookForWindows).PackageFullName and hit Enter.

This command successfully uninstalls the new Outlook package. However, further action is needed.

Blocking Future Installs via Registry Modifications

Open the Start menu again.
Type regedit.exe and press Enter.
Confirm the security prompt by clicking Yes.
Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsUpdate\Orchestrator\UScheduler_Oobe\OutlookUpdate
Right-click on OutlookUpdate, choose New > String Value.
Label it BlockedOobeUpdaters.
Double-click on BlockedOobeUpdaters and set the value to ["MS_Outlook"].
Restart your PC.

After completing these changes, further installations of the new Outlook should cease during Windows updates.

Your Voice Matters

The automatic rollout of the new Outlook application may elicit frustration among some Windows 10 users. A user-controlled installation process could have mitigated potential backlash, allowing for more straightforward user preferences. However, given the decision from Microsoft, this route was likely pursued to maximize adoption rates at the expense of user control.

Have you had the chance to explore the new Outlook application? We’d love to hear your thoughts—feel free to share in the comments section below.

Additional Insights

1. Can I completely stop the new Outlook from being installed?

No, Microsoft has designed the new Outlook to install automatically with Windows updates. However, you can uninstall it and prevent future installations using the PowerShell and Registry methods described above.

2. What are the main differences between classic Outlook and the new Outlook?

The new Outlook interface emphasizes a streamlined design yet lacks certain features available in the classic client, leading to some user dissatisfaction. Additionally, the new version includes ads, which were not a feature in the previous versions.

3. Is it safe to modify the Registry to block the new Outlook?

While modifying the Windows Registry can be safe when done correctly, it is crucial to follow the directions precisely. Incorrect alterations can lead to system instability. It’s advised to back up your Registry before making changes.

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