Revoke Easy Access to on Trusted Devices

When you lose a device, revoke trusted device status for security

It's easy to log into and designate "trusted devices," even when you have two-step verification in place. When you lose trust in a device or lose the device itself, you should revoke access to the device. Authentication using both password and code is required in all browsers, but not in applications that use specific passwords to log into your account via POP.

Instructions in this article apply to Outlook Online.

Revoke Easy Access to on Trusted Devices

To delete the list of trusted devices you use with and require two-step authentication in all browsers at least once:

  1. Open in a browser.

  2. Go to the Navigation bar and select your name.

  3. Select My account. home screen displaying the inbox and account properties.
  4. Select Security.

    Viewing account options within
  5. Select more security options.

    Security basic settings within
  6. In the Trusted devices section, select Remove all the trusted devices associated with my account.

    Viewing additional security settings within
  7. Select Remove all trusted devices to confirm the removal of the devices.

    Confirmation of removing a trusted device for
  8. The devices will no longer have access to Outlook.

Add a Trusted Device to Your Microsoft Account

Microsoft recommends revoking trusted device status whenever you lose a device or one is stolen. You can always grant trusted status again when it is recovered. Here's how:

  1. Using the device you want to mark as trusted go to Settings (the gear icon in the Windows menu).

    Selecting Settings within Windows 10.
  2. Select Accounts.

    Viewing settings within Windows 10.
  3. Select Your info.

    Selecting Your info within Windows 10 settings.
  4. Select Sign in with a Microsoft account instead.

    Viewing the Your Info settings within Windows 10.
  5. Enter the email address of your Microsoft account, then select Next.

    Entering an email address to log into a Microsoft account.
  6. Enter your password, then select Sign in.

    Entering in a password to sign into a Microsoft account.
  7. Enter your current Windows password, then select Next.

    Entering in a Windows password to continue the login process.
  8. Select Next to setup Windows Hello.

    Selecting next to setup the Windows Hello screen.
  9. You may be prompted to enter a PIN if you previously set up one.

    Entering a pin number to complete Windows security login.
  10. Select Verify to verify your identity on the PC.

    Viewing the your info page again within Windows 10.
  11. Choose how you want to receive a security code (through text, email, or phone), then select Next.

    Verifying your identity within Windows 10.
  12. Enter the code you received, then select Next.

    Entering in a pin number to verify the computer's identity.
  13. To verify your system has been added, select Manage my Microsoft account.

    Your info after PC verification in Windows 10.
  14. In the Microsoft account page, select Sign in.

    Microsoft account homepage to sign in.
  15. Enter your login account, then select Next.

    Microsoft account sign in dialog box.
  16. Enter your password, then select Sign in.

    Entering in a password into the Microsoft account login.

    Select Keep me signed in to avoid logging in frequently.

  17. Under Devices, select All Devices. Or select your newly added device if it displays in the list of devices.

    Showing the Microsoft account dashboard.
  18. You can view your newly added device, see details, and manage the device.

    Showing devices that have been registered with a Microsoft account.

Now you can sign in and access your email on the trusted device without entering another security code.

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