Fix Microsoft 365 Error: Another Account Signed In on This Device

If you've ever encountered the infuriating error message, "Another account from your organization is already signed in on this device. Try again with a different account," while attempting to access Microsoft 365 applications, you are far from alone. This pesky problem likely arises when you're navigating Microsoft apps on a device that's already juggling multiple organizational accounts. Don’t let it ruin your productivity; this guide will help you untangle that web of accounts and get you back to business.

Understanding the Roots of the Error​

What Causes This Error?​

This error typically happens due to:

• Residual Credentials: When you’ve previously logged in with different accounts, the system retains these credentials.
• Multiple Accounts: Having more than one work account on the same device can create a clash.
• Shared or Public Computers: If you’re using a machine that others have access to, conflicting accounts can lead to authentication issues.

Fortunately, the solutions are straightforward and will have you back up and running in no time.

Step-by-Step Solutions​

1. Sign Out of All Office Applications​

Microsoft applications cache your credentials for faster access. When multiple accounts are in play, the application can’t decide which one to use, leading to confusion.
Here's how to clear the cached credentials:

• Open any Microsoft 365 application (e.g., Word, Excel).
• Click on your profile picture or initials in the top right corner.
• Select Sign Out for all accounts and confirm the action.
• Close all Office applications and restart your computer.
• Reopen your chosen application and sign in only with your intended account.

After this, make sure to check under File > Account to see that only your newly signed-in account appears under Connected Services.

2. Disconnect Work or School Accounts​

Another step involves disconnecting unrelated or unnecessary work or school accounts from your device. This can clear up potential conflicts.
To disconnect an account:

• Press Windows + I to open Settings.
• Navigate to Accounts > Access work or school.
• Identify and select the problematic account, then click Disconnect.
• Confirm and restart your computer to apply the changes.

3. Clear Office License Activation Data​

Sometimes, lingering activation data can get corrupted and lead to issues with your accounts. Clearing this data forces Office to refresh its authentication state.
To do this:

• Close all Office applications.
• Press Windows + R to open the Run dialog. Type "%localappdata%\Microsoft\Office\16.0\Licensing" (replace "16.0" with your specific Office version).
• Select all files in the Licensing folder and delete them.
• Restart your computer and reopen an Office app to sign in again.

4. Use the Microsoft Support and Recovery Assistant (SaRA)​

If the above solutions don’t resolve the issue, the next step is to use the Support and Recovery Assistant tool provided by Microsoft.
Follow these steps:

• Go to the official SaRA download page.
• Download and install the setup file.
• Launch the Assistant and select Office & Office Apps to troubleshoot your issue.
• Choose the option related to account sign-in difficulties and follow the on-screen instructions.

Conclusion​

The error message “Another account from your organization is already signed in” is one of those frustrating tech issues that can pop up unexpectedly. However, with a bit of patient troubleshooting, it’s often easy to resolve. By signing out of all accounts, disconnecting unnecessary work accounts, clearing cached data, and utilizing the Microsoft Support and Recovery Assistant, you can regain access to your Office applications without a hitch.
As always, remember to share your experiences and solutions on forums like WindowsForum.com to help fellow users navigating the same technical hurdles!

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Source: Appuals Fix: Another account from your organization is already signed in on this device