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How to Sign Out of Microsoft 365 on One Mac Without Affecting Other Devices

Rana Garcia Oct 1, 2026 868 views

Question details

The user wants to remove a shared Microsoft 365 account from their Mac and sign in with their own account, without disrupting the original account's active session on a different laptop.

How to Sign Out of Microsoft 365 on One Mac Without Affecting Another Device

Product: Microsoft 365
Device & OS: Mac
Scenario: Switching Microsoft accounts on a specific device after being added to a Microsoft 365 Family subscription.
Observed behavior: The user needs to transition their Mac to their own newly acquired Microsoft 365 access, but is hesitant to sign out for fear it will globally sign their spouse out of other connected devices.

Before you start

Before switching accounts, verify that any documents currently open under the original Microsoft account are fully synced to that specific OneDrive to avoid creating orphaned files when the new account logs in.

Solution 1Recommended

Sign Out directly from Microsoft Word or Excel

The standard method to remove a Microsoft 365 account from a single Mac device safely.

Signing out of Microsoft 365 is a device-specific action. When you log out of an account on your Mac, it only removes the local license and session data. It does not send a global sign-out command, meaning the account will remain perfectly active and logged in on any other laptops or devices.

Open a Microsoft App

Launch Microsoft Word or Excel on your Mac.

Access the Account Settings

Click on the application menu at the top left of your screen (e.g., click 'Word') or select 'File', then choose 'Account' or 'Sign Out'.

Confirm Sign Out

Click the 'Sign out' button and confirm any prompts to remove the account credentials from this specific Mac.

Sign In with Your Account

Restart the application, click 'Sign In', and enter the credentials for your own Microsoft account connected to the Family subscription.

Sign Out directly from Microsoft Word or Excel

Device Independence: Once completed, your Mac will operate under your new account, and the previous account will remain completely unaffected on other devices.

Solution 2

Use the Microsoft Office License Removal Tool

Apply this solution if your Mac continues to detect the old Microsoft 365 account even after you have signed out from the application menu.

Free Microsoft Office alternative

Switch to WPS Office for Easier Account Management on Mac

Managing shared licenses and avoiding account conflicts in Microsoft 365 can be unnecessarily complex. WPS Office offers a free, lightweight alternative that simplifies document creation without restrictive licensing hurdles.

1. Download WPS Office: Visit the official WPS website and download the installation file for Mac.
2. Install and Launch: Install the application and launch it from your Applications folder.
3. Sign In Easily: Sign in with a free WPS account and seamlessly open your existing Microsoft documents.

Completely free to download and use on Mac, Windows, iOS, and Android.Fully compatible with Microsoft Office formats including .docx, .xlsx, and .pptx.Independent account management that won't conflict with family subscriptions.Lightweight installation that runs fast and smoothly on macOS.

microsoft office alternative - wps office

Frequently Asked Questions

Will signing out of Microsoft 365 on my Mac delete my files?

No. Signing out only severs the connection to the cloud storage and removes the application license from that specific Mac. Your locally saved files remain on your hard drive, and cloud files remain safely in OneDrive.

Why is Microsoft Word still showing the old account after signing out?

macOS often stores account credentials and license files in the Keychain. If standard sign-out fails, you must use Microsoft's official Office License Removal Tool for Mac to clear the hidden license files before logging in with your new account.

Can I have two different Microsoft accounts logged into Office on the same Mac?

While you can add multiple connected services (like different OneDrive accounts) for file access, Microsoft 365 on Mac requires one primary account to hold the active software license.

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