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How to Fix Incorrect Email Address Changing During Mac Office Sign-In
Question details
The user needs to stop their email address from automatically changing to an incorrect one when attempting to log into Office applications.
- Product
- Microsoft Office
- Device & OS
- Mac
- Scenario
- Signing in to Microsoft Office applications to activate the software or access cloud documents.
- Observed behavior
- The entered email address automatically reverts or changes to another address, causing the password authentication to fail.
Ensure you have the correct Microsoft account email and password ready, and make sure all Office applications are completely closed before applying the fix.
Use the Microsoft Office License Removal Tool
Running the official License Removal Tool clears the cached account and license information that is forcing the incorrect email address to appear.
Microsoft Office for Mac sometimes caches old or incorrect license credentials in your system files. When this happens, the app will override your manually entered email address with the cached one. Clearing these files manually can be tricky, so Microsoft provides a dedicated utility to safely wipe the login cache.
Visit the official Microsoft Support website and download the Microsoft Office License Removal Tool for Mac.
Open the downloaded .pkg file from your Downloads folder and follow the on-screen prompts to remove the cached Office licenses and sign-in details from your Mac.
Launch any Office application, such as Word or Excel. You will be prompted to sign in from scratch. Enter your correct Microsoft account credentials; the email address should no longer change automatically.
Try WPS Office for Mac to Avoid Sign-In Hassles
If you are frequently interrupted by authentication errors and cached license issues with Microsoft Office, WPS Office offers a powerful, lightweight, and highly compatible alternative for Mac users. You can start creating, editing, and managing your documents immediately without dealing with complex sign-in loops.
- 1. Download for Mac: Visit the WPS Office website and download the official Mac version.
- 2. Install quickly: Open the installer and drag the WPS Office icon to your Applications folder.
- 3. Open existing files: Launch WPS Office and directly open your existing Microsoft Office files to continue your work without missing a beat.
Frequently Asked Questions
Why does my Mac auto-fill the wrong email in Office?
This usually happens when an old, expired, or alternate Microsoft account license is securely cached in your Mac's keychain or hidden Office configuration files, overriding your manual input.
Will using the License Removal Tool delete my saved documents?
No, the tool only targets and removes Office license files and cached sign-in credentials. Your personal documents, spreadsheets, and presentations remain completely safe and untouched on your hard drive.
Can I manually clear the Mac Keychain for Office?
Yes, you can open the Keychain Access app on your Mac, search for 'Microsoft Office' or 'ADAL', and delete those specific credential entries to manually force a fresh sign-in.
What if I still can't sign in after removing the license?
If the issue persists, you may need to completely uninstall Microsoft Office by moving the apps to the Trash and deleting the associated library containers, then reinstalling a fresh copy of the suite from your Microsoft account portal.
