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Troubleshooting

Classic Outlook New Outlook Outlook.com

See a list of Outlook known issues

Fix Outlook and Office 365 problems with the Support and Recovery Assistant for Office 365

Something went wrong adding Gmail to Outlook

Other people aren't receiving my messages

I can't start Outlook or it gives me an error that says “Cannot start Microsoft Office Outlook. Cannot open the Outlook Window”

The Outlook program freezes, stops working, or hangs

Other people aren't receiving my messages

My sent messages are stuck in the Outbox

When you can't sign into your account

Get help with Outlook.com or Outlook on the web in a mobile browser

When you can't sign into your account

Fixes or workarounds for recent issues in Outlook.com

My Outlook.com account has been hacked

Get help with Outlook.com or Outlook on the web in a mobile browser

Troubleshoot connected accounts in Outlook.com

How to sign in to or out of Outlook.com

Unblock my Outlook.com account

Can't send or receive email in Outlook.com

When you can't sign into your account

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