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Uninstall & Reinstall Issues

How to Roll Back Microsoft 365 to Office 2019 After Windows 11 Upgrade

John WilsonJohn Wilson Oct 21, 2026 868 views

Question details

The user needs to remove an unwanted Microsoft 365 installation and restore their previously owned Office 2019 suite.

How to Roll Back Microsoft 365 to Office 2019 After a Windows 11 Upgrade
Product
Microsoft Office 2019
Device & OS
Windows 11
Scenario
A recent Windows 11 upgrade automatically installed or replaced an existing Office 2019 installation with Microsoft 365.
Observed behavior
The system is currently running Microsoft 365 instead of the user's licensed Office 2019, requiring a rollback.
Before you start

Ensure you have your Microsoft account login credentials handy, as you will need them to verify your Office 2019 license and download the installer.

Solution 1Recommended

Uninstall Microsoft 365 and Reinstall Office 2019 via Microsoft Account

The most reliable method is to completely remove Microsoft 365 using Microsoft's official uninstall tool, then manually download Office 2019 from your Microsoft account dashboard.

Simply deleting the Microsoft 365 application shortcuts will not remove the software. You must use the official removal tool to clear all background services and registry keys before installing an older Office version to prevent licensing conflicts.

1
Verify Your Office 2019 License

Navigate to the Microsoft Services and Subscriptions page (account.microsoft.com/services) in your web browser. Log in to confirm that Office 2019 is securely linked to your account.

2
Run the Office Uninstall Support Tool

Download Microsoft's Office uninstall support tool (SaRA) via https://aka.ms/SaRA-officeUninstallFromPC. Run the downloaded executable and follow the on-screen prompts to completely wipe Microsoft 365 from your system.

3
Restart Your Computer

Once the uninstallation process is complete, restart your Windows 11 computer to ensure all residual Microsoft 365 files and registry entries are cleared out.

4
Download and Install Office 2019

Return to your Microsoft Services and Subscriptions page, locate your Office 2019 license, and click the 'Install' button to download the setup file. Run the installer to restore Office 2019.

Uninstall Microsoft 365 and Reinstall Office 2019 via Microsoft Account
Keep Product Keys Ready: If you purchased a physical copy of Office 2019 or obtained it through a third-party retailer, ensure you have your 25-character product key available in case manual activation is required after installation.
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Frequently Asked Questions

Will I lose my saved files when uninstalling Microsoft 365?

No, uninstalling Microsoft 365 only removes the application files from your system. Your locally saved documents, spreadsheets, and presentations will remain completely intact on your hard drive.

Why did Windows 11 replace my Office 2019 with Microsoft 365?

Certain Windows 11 updates or new system configurations come pre-loaded with Microsoft 365 trials. During an update, the system may prioritize this newer pre-installed version over your older standalone Office 2019 software.

Can I have both Microsoft 365 and Office 2019 installed at the same time?

It is not recommended. Having both Microsoft 365 and a standalone version like Office 2019 installed simultaneously can cause severe activation conflicts, default application errors, and performance issues.