Where most complaints about this service are coming from, over the last 24 hours.
Shows where the service URL was unreachable during the detected outage periods. Percentages indicate the share of failed checks from monitoring locations in each country.
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If Word, Excel, or any other app freezes right after opening, the first thing to check is whether the installation is corrupted. Run the built-in repair tool: go to Control Panel → Programs → Microsoft 365 → Change → Quick Repair. If that doesn't help, try Online Repair — it redownloads core components from Microsoft's servers.
This usually happens after a Windows reinstall or switching to a new device. Sign out of your Microsoft account inside any Office app (File → Account → Sign Out), then sign back in. If the error code is 0x8004FC12 or similar, the license server might not be responding — wait 10–15 minutes and try again. Make sure the account you're signing into actually has an active subscription.
First, check your internet connection — Outlook needs a stable one even for basic IMAP/SMTP operations. If the status bar at the bottom shows 'Disconnected' or 'Trying to connect', go to Send/Receive → Work Offline and toggle it off. Sometimes the outbox gets jammed with a large attachment; delete or move it and try again. If the issue is with a corporate account, the Exchange server might be temporarily unavailable — confirm with your IT team.
Large files with many formulas, embedded objects, or tracked changes are the usual culprits. Disable hardware graphics acceleration: File → Options → Advanced → uncheck 'Disable hardware graphics acceleration'. Also turn off add-ins one by one (File → Options → Add-ins) to find which one is slowing things down.
If search returns no results or throws an error, the index is likely broken. Go to File → Options → Search → Indexing Options → Rebuild. The process takes a few minutes depending on mailbox size.