How to Fix Microsoft Teams desktop won't load
Error message
Microsoft Teams desktop client opens to a blank window, white screen, or never finishes signing in.
If you're seeing "Microsoft Teams desktop won't load", you're not alone. Here's what it means, why it happens, and the steps to resolve it.
What this error means
The Teams client is failing to render or finish authentication. The process is running but the UI is broken or hung.
Why this happens
Corrupted local cache, an outdated client, a broken Web Account Manager (WAM) session, or a proxy/Conditional Access policy interfering with sign-in.
Step-by-step fix
Fully quit Teams (including the tray icon).
Clear the Teams cache (new Teams).
commandRemove-Item -Recurse -Force "$env:LOCALAPPDATA\Packages\MSTeams_8wekyb3d8bbwe\LocalCache"Sign out of the Office account in Settings → Accounts → Access work or school, then sign back in.
Repair or reinstall the new Teams client from the Microsoft 365 admin center or Microsoft Store.
Affected products
Microsoft Teams
Still broken? Try these
- Test in a different network to rule out proxy/SSL inspection.
- Check Entra Sign-in logs for the user — look for Conditional Access failures.
- Try the Teams web client at teams.microsoft.com to isolate the desktop app.
Related errors
Frequently asked questions
What does "Microsoft Teams desktop won't load" mean?
The Teams client is failing to render or finish authentication. The process is running but the UI is broken or hung.
What causes "Microsoft Teams desktop won't load"?
Corrupted local cache, an outdated client, a broken Web Account Manager (WAM) session, or a proxy/Conditional Access policy interfering with sign-in.
How do I fix "Microsoft Teams desktop won't load"?
1. Fully quit Teams (including the tray icon). 2. Clear the Teams cache (new Teams). 3. Sign out of the Office account in Settings → Accounts → Access work or school, then sign back in. 4. Repair or reinstall the new Teams client from the Microsoft 365 admin center or Microsoft Store. Always test changes in a non-production environment first.
Browse more errors in Microsoft Teams: Fix Microsoft Teams errors. Desktop app loading issues, Teams Rooms audio/video drops, federation, and meeting access problems. Or paste your own error into the error decoder tool to find a match. You can also go back to the homepage to browse common errors by topic.