Cannot log into MS Defender

Hi, @Constance

Thanks for sharing the screenshot.

If you haven’t tried it yet, first check that your Microsoft 365 Personal or Family subscription is active here: https://account.microsoft.com/services Make sure you are signing in to Defender with the same Microsoft account that has the subscription.

Then go to Settings > Apps > Installed apps > Microsoft Defender > Advanced options. Try "Repair" first. If that does not help, try "Reset."

If the issue still persists after repairing/resetting it, uninstall Microsoft Defender, restart the PC, then reinstall Microsoft Defender from the Microsoft Store and sign in again.

If it still does not work, to help narrow down the issue:

1. Does your Microsoft 365 subscription show as active on the Services page?
2. Can you sign in normally at https://account.microsoft.com using the same account?
3. Does the Windows Security app open and work normally?

Click "Add comment" to let me know.

Thanks!