Update & Upgrade Problems

How to Revert a Microsoft 365 Semi-Annual Channel Update

Kushani Nimanthika Oct 7, 2026 869 views

Question details

The user needs to downgrade their Microsoft 365 installation to a previous build to resolve application instability caused by a recent update.

How to Revert a Microsoft 365 Semi-Annual Channel Update

Product: Microsoft 365
Device & OS: Windows
Scenario: Excel or PowerPoint randomly crashes after installing the latest Microsoft 365 Semi-Annual Enterprise Channel update.
Observed behavior: Microsoft Office applications experience random crashes following an update, preventing normal workflow and requiring a rollback to a previously stable version.

Before you start

Ensure you have administrative privileges on your Windows computer and have saved all ongoing work in your Office applications before initiating the rollback process.

Solution 1Recommended

Roll Back Microsoft 365 via Command Prompt

Safely downgrade to a previous stable build using the built-in Click-to-Run command line tool.

Before running the rollback command, determine the specific build number (such as 16731.20504 or 16130.20868) you wish to revert to by checking the official Microsoft 365 update history online.

It is crucial to disable automatic updates in your Office app first; otherwise, Microsoft 365 will automatically re-download and install the problematic update shortly after you roll back.

Disable Automatic Updates

Open any Office application such as Excel. Navigate to File > Account, click on Update Options, and select 'Disable Updates' from the dropdown menu.

Open Command Prompt as Administrator

Click the Windows Start menu, type 'cmd' or 'Command Prompt', right-click the application, and select 'Run as administrator'.

Navigate to the ClickToRun Folder

In the Command Prompt window, type 'cd %programfiles%\Common Files\Microsoft Shared\ClickToRun' and press Enter to change the active directory.

Execute the Rollback Command

Type 'officec2rclient.exe /update user updatetoversion=16.0.XXXXX.yyyy' (replace XXXXX.yyyy with your desired build number, like 16731.20504) and press Enter. Follow the on-screen prompts to complete the downgrade.

Roll Back Microsoft 365 via Command Prompt

Update History Reference: You can find valid Microsoft 365 version numbers by visiting the official Microsoft 'Update history for Microsoft 365 Apps' documentation page.

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Frequently Asked Questions

Why is it necessary to disable updates before rolling back?

If you do not disable automatic updates, the Microsoft 365 background service will detect that you are running an older version and will automatically download and reinstall the problematic update again.

Where can I find the correct version number to revert to?

You can find exact version and build numbers on Microsoft's official 'Update history for Microsoft 365 Apps' webpage. Look for the build immediately preceding the update that caused your issues, such as version 16731.20504.

Will rolling back Microsoft 365 delete my files or documents?

No, reverting your Office installation to an earlier build only affects the application software files. All your personal documents, spreadsheets, and presentations saved on your computer or OneDrive remain perfectly safe.

Can I use this Command Prompt method on a Mac?

No, the Click-to-Run (officec2rclient.exe) method is exclusively for Windows operating systems. Mac users must use Microsoft AutoUpdate settings or manually install an older package from Microsoft's Mac update history page.

Installation & Activation