Is Microsoft 365 Down? How to Check and What to Do

How to check if Microsoft 365 is really down

Start with sources that Microsoft itself runs.

Signs it's a Microsoft outage and not your device

Outages tend to hit many people at once and across more than one app. A problem on your side usually affects one person or one app.

What to do while you wait

You often can't fix a Microsoft-side outage, but you can keep working around it.

Fixes to skip during a confirmed outage

• Resetting your password or removing your account.
• Uninstalling Office or deleting your Outlook profile.
• Repeatedly signing in and out, which can trigger extra security prompts.

If only you are affected

• Restart the app.
• Sign out of the app and sign in again.
• Update Office and Windows.
• Disable recently added Outlook add-ins.