Sign-in & Login Problems

How to Remove an Unrecognized Account from the Microsoft Sign-In Screen

Olivia MillerOlivia Miller Nov 2, 2026 868 views

Question details

The user needs to safely remove an unfamiliar account shown in the Microsoft account picker without causing harm to active subscriptions or exposing personal security.

How to Remove an Unrecognized Account from the Microsoft Sign-In Screen
Product
Microsoft Office
Device & OS
not provided
Scenario
Attempting to sign in to Microsoft Office applications or services and finding an unfamiliar email or account name in the saved accounts list.
Observed behavior
An unrecognized account, sometimes containing encoded text like "%40" in place of the "@" symbol, appears on the Microsoft sign-in screen.
Before you start

Before deleting or modifying any account, verify its origin and check if it is tied to an active Microsoft Office subscription to avoid losing access to your purchased products.

Solution 1Recommended

Verify Account Details and Subscription Status

Properly identify the unrecognized account and check its subscription status before attempting to remove or close it permanently.

Unrecognized accounts are often saved work, school, or personal accounts that were previously used on the device. It is crucial to determine if the account holds an active Microsoft Office subscription before taking action.

1
Log into Microsoft Services

Navigate to account.microsoft.com/services and carefully log in with your primary account (or the unrecognized account if you own the credentials) to view active subscriptions.

2
Review Security Activity

Navigate to the 'Security' tab to review recent sign-in activity. Check for any unauthorized access attempts or unfamiliar devices.

3
Change Password if Necessary

If you notice unfamiliar sign-ins or suspicious activity, immediately change the account password to secure it.

Verify Account Details and Subscription Status
Encoded Characters in Email: If you see encoded text like '%40' in the account name, it simply represents the '@' symbol in an email address and does not inherently mean the account is malicious.
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Frequently Asked Questions

Is it safe to click on an unrecognized account on the sign-in screen?

Selecting the account to view its basic properties is generally safe. However, do not provide passwords or confirm secondary prompts if you suspect malicious activity. Always verify the source of the account first.

Why does the email address have "%40" in it?

The "%40" is simply the URL-encoded version of the "@" symbol. It commonly appears when work or school accounts are cached by the system during previous sign-in attempts.

Can I permanently close an account I don't recognize?

You can close an account if it belongs to you and is no longer used. However, never close an account if it is associated with an active Microsoft Office subscription, as you will permanently lose access to your software and saved files.

How do I stop Windows from remembering saved Microsoft accounts?

You can clear saved accounts by accessing the Windows Credential Manager from the Control Panel. Navigate to 'Windows Credentials' and remove any stored credentials tied to the unwanted Microsoft account.