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How to Remove Preinstalled Office and Install Microsoft 365 on Surface Pro 9
Question details
The user needs to remove the factory-installed Office version on a new Surface Pro 9 so it stops returning after system updates, allowing them to install and use their Microsoft 365 subscription without conflict.
- Product
- Microsoft Office / Microsoft 365
- Device & OS
- Surface Pro 9
- Scenario
- Setting up a new Surface Pro 9 with an existing Microsoft 365 license instead of the factory software.
- Observed behavior
- The preinstalled Office version returns after Windows updates or security changes, overriding or conflicting with the desired Microsoft 365 installation.
Make sure you have the login credentials for your active Microsoft 365 account ready before uninstalling the current suite, so you can sign in immediately after the new installation.
Uninstall via Windows Settings and Install Microsoft 365
Use the standard Windows app management tools to remove the preinstalled Office, then download your licensed version directly from Microsoft.
This is the most straightforward method for removing the factory software. By manually uninstalling it through Settings, you can clear the way for your subscription-based Microsoft 365 apps.
Click the Start menu, go to Settings, choose Apps, and select 'Installed apps' to view all programs on your Surface Pro 9.
Search for 'Microsoft Office' or 'Microsoft 365' in the app list. Click the three dots (...) next to it and select 'Uninstall'. Follow the on-screen prompts to complete the removal.
Open your web browser and go to www.office.com. Sign in with the account associated with your Microsoft 365 license and click the 'Install apps' button.
Launch the downloaded setup file and wait for the installation process to finish. Once done, open any app like Word and confirm it is activated with your account.
Use Microsoft Support and Recovery Assistant (SaRA)
If the preinstalled Office keeps coming back after updates, use this official tool for a deep uninstallation.
Avoid Complex Installations with WPS Office
If you want to avoid dealing with stubborn preinstalled apps, subscription activations, and installation conflicts on your Surface Pro 9, switch to WPS Office. It provides a lightweight, highly compatible alternative to Microsoft Office without the hassle.
- 1. Download the Installer: Visit the official WPS website and click the free download button for Windows.
- 2. Install WPS Office: Run the lightweight installer file. The setup takes only moments and avoids system registry clutter.
- 3. Start Creating: Launch WPS Office and instantly open your existing Microsoft Office files without compatibility issues.
Frequently Asked Questions
Why does the preinstalled Office return after I update my Surface Pro 9?
This happens when standard uninstallation leaves behind registry keys or update policies. Windows updates sometimes detect these remnants and automatically reinstall the factory software. Using the Microsoft Support and Recovery Assistant ensures a complete removal.
Will uninstalling the preinstalled Office delete my documents?
No. Uninstalling the Office application only removes the software suite itself. Any Word documents, Excel spreadsheets, or other files saved locally on your device or in OneDrive will remain completely intact and accessible.
Can I just use the preinstalled Office version instead of Microsoft 365?
You can, but it may function as a trial or require a separate license purchase. If you already pay for a Microsoft 365 subscription, installing the M365 version ensures you have full access to premium features, cloud storage, and ongoing security updates.
