Sending, receiving, and organizing email in Outlook.com
Hello,
- May I ask whether you have a personal Microsoft account (@outlook.com or @hotmail.com) or a work account?
- Do you have the same sign-in problem in an InPrivate window?
Open https://outlook.live.com/ in an InPrivate window and sign in with your Microsoft account.
If you can sign in successfully, clear your browser’s history, cache, and cookies. Then try signing in to Outlook.com again in a regular window.
You can also try another web browser or the Outlook app on your device. This can help determine whether the issue is specific to your browser or related to your account.