'%3e%3cpath%20d='M8%200C12.4183%200%2016%203.58172%2016%208C16%2012.4183%2012.4183%2016%208%2016C3.58172%2016%200%2012.4183%200%208C0%203.58172%203.58172%200%208%200ZM11.6162%204.38379C11.2257%203.99337%2010.5927%203.99338%2010.2021%204.38379L8%206.58594L5.79785%204.38379C5.40732%203.99334%204.77429%203.99329%204.38379%204.38379C3.99331%204.77429%203.99335%205.40733%204.38379%205.79785L6.58594%208L4.38379%2010.2021C3.99348%2010.5927%203.99341%2011.2257%204.38379%2011.6162C4.77426%2012.0066%205.40734%2012.0065%205.79785%2011.6162L8%209.41406L10.2021%2011.6162C10.5927%2012.0066%2011.2257%2012.0067%2011.6162%2011.6162C12.0067%2011.2257%2012.0066%2010.5927%2011.6162%2010.2021L9.41406%208L11.6162%205.79785C12.0066%205.40735%2012.0066%204.77429%2011.6162%204.38379Z'%20fill='%23080E17'%20fill-opacity='0.46'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_3761_713'%3e%3crect%20width='16'%20height='16'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
How to Fix Office Product Deactivated Error 29 by Rolling Back
Question details
Users are encountering a activation failure in Microsoft 365 after a recent software update, preventing access to premium features.
- Product
- Microsoft 365
- Device & OS
- Windows
- Scenario
- Attempting to use Microsoft Office applications after updating the software to Version 2406.
- Observed behavior
- The applications display a 'Product Deactivated' warning accompanied by Error Code 29, and remote support troubleshooting steps fail to restore the active subscription status.
Ensure you have administrative privileges on your Windows computer, as you will need to run an elevated Command Prompt to perform the rollback.
Roll Back Office to a Previous Working Build
Use the Windows Command Prompt to revert your Microsoft Office installation to a stable version prior to the problematic Version 2406.
Rolling back the Office deployment removes the corrupted update and restores the core files from a previously stable release. This method bypasses the bug introduced in Version 2406 that triggers Error Code 29.
Click the Windows Start menu, type 'cmd' in the search bar, right-click on 'Command Prompt', and select 'Run as administrator'.
In the Command Prompt window, navigate to the ClickToRun folder using 'cd %programfiles%\Common Files\Microsoft Shared\ClickToRun'. Then, enter the update command specifying your target stable build version (e.g., 'OfficeC2RClient.exe /update user updatetoversion=16.0.xxxxx.xxxxx') and press Enter.
Once the rollback process completes, restart your computer. Open Microsoft Word or Excel and sign in to your Microsoft account to confirm the activation is restored.
To prevent Office from reinstalling the buggy Version 2406, open any Office app, go to File > Account > Update Options, and click 'Disable Updates'.
Switch to WPS Office to Avoid Activation Hassles
If you are tired of dealing with Microsoft 365 activation errors, unexpected deactivations, and buggy forced updates, WPS Office provides a reliable, lightweight, and highly compatible alternative. Enjoy seamless document editing without ongoing subscription fees or complex error codes.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button to get the setup file.
- 2. Install WPS Office: Run the downloaded installer and follow the straightforward on-screen instructions to set up the suite on your PC.
- 3. Open Your Office Files: Launch WPS Office and directly open your existing Word, Excel, and PowerPoint files to continue working seamlessly.
Frequently Asked Questions
Why did Error Code 29 appear in Microsoft 365?
Error Code 29 is a known activation bug that was introduced for many users after updating their Office deployment to Version 2406. It incorrectly causes the software to fail subscription validation, resulting in a 'Product Deactivated' message.
How long should I keep Microsoft Office updates disabled?
You should keep automatic updates disabled temporarily until Microsoft officially acknowledges the bug and releases a stable patch subsequent to Version 2406. Monitor the Microsoft support forums periodically for an all-clear.
Will rolling back my Office version delete my personal documents?
No, executing a version rollback only affects the Microsoft Office application program files. Your personal documents, spreadsheets, and presentations saved on your local hard drive or OneDrive will remain completely intact.
What if the Command Prompt rollback doesn't fix Error 29?
If the rollback fails, you may need to use the Microsoft Support and Recovery Assistant (SaRA) tool to completely uninstall and reinstall a fresh, older copy of Microsoft 365, or consider using a free alternative like WPS Office.
