Resolve Microsoft Teams "msteams.exe - Bad image" error in Windows 11 (0xc0000020)

Windows 11 integrates Microsoft Teams to facilitate user communication. But sometimes when starting Teams, you will get the "msteams.exe - Bad image" error, with the error code 0xc0000020. This problem is usually caused by updating corrupted files or corrupted files in Teams library. Here are some solutions:

Method 1: Reinstall Microsoft Teams

1. Open the Settings app and go to Apps > Installed Apps.
2. Find "Microsoft Teams", click three dots, and select "Uninstall".
3. After the uninstallation is complete, download and install Teams again.

Method 2: Reset Microsoft Teams

1. Go to Settings > Apps > Installed Apps.
2. Find "Microsoft Teams", click three dots, and select "Advanced Options".
3. Click the “Reset” button.

Method 3: Rename the Microsoft Teams folder

This method requires access to the protected WindowsApps folder.

1. In File Explorer, click View > Show Hidden Items.
2. Go to C:\\Program Files\\WindowsApps folder. (Note: This folder is usually hidden and requires administrator access)
3. Find the folder that starts with MicrosoftTeams and rename it to MicrosoftTeams.old . (Permission escalation may be required)

Restart the computer and see if the problem is resolved.

Method 4: Create a local account

Account issues can also cause this error. Create a local account to try to resolve:

1. Open Settings > Accounts.
2. Under Other Users, click "Add Account".
3. Select "I don't have this person's login information" > "Add user without a Microsoft account".
4. Enter the username and password to complete the creation.

The above method can help you fix the msteams.exe Bad image error (0xc0000020) that occurs in Windows 11. If the problem persists, it is recommended to check system file integrity or contact Microsoft Support for further assistance.

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