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Teams & Zoom

New Teams App Won't Open Windows 11 – Fix

AG
Againly Tech Team
April 16, 2026

New Teams App Won't Open Windows 11 – Fix

The "Microsoft Teams (Work or School)" app is notorious for getting stuck in a loading loop or simply failing to open at all. Againly fixes this automatically by repairing the "Msix" package container and resetting your login authority.

Why this happens

  • Package Integrity: The Windows Store package for Teams is corrupted and fails the "Digital Signature" check during launch.
  • Login Deadlock: Teams is trying to authenticate with a "stale" token from a previous session.
  • Background Multi-Process: A invisible instance of Teams is already running but is in a "Hanging" state.

Fix it manually

  1. Repair via Settings: Settings > Apps > Installed Apps > Teams > ... > Advanced options > click Repair.
  2. Clear Modern Cache: Go to %localappdata%\Packages\MSTeams_8wekyb3d8bbwe and delete the LocalCache folder.
  3. Run as Admin: Right-click the Teams shortcut and select "Run as administrator."

Fix it automatically with Againly

Againly's "CleanBoot" protocol kills phantom Teams processes and repairs the app manifest in under 2 minutes, getting you back to work instantly.

Instant Resolution

Fix this problem in 46 seconds

Stop wrestling with registry keys and driver settings. Let Againly automate the fix for you right now.

Download Againly Free →

Works on Windows 10 & 11 • No credit card required

New Teams App Won't Open Windows 11 – Fix | Againly