- Use policies to control app permissions. Go to Devices > Chrome > Settings > Apps & Extensions > Permissions, and configure the permissions for the Files app or file system access in general.
- Check if any restrictions policies are blocking access to external storage or limiting app permissions. Go to Devices > Chrome and review the restrictions settings.
- On individual devices, open the Files app, go to its app info/settings, and make sure all the necessary permissions are enabled. You may need to remove any applied restrictions.
- Consider resetting user profiles or powerwashing devices if incorrectly configured policies or restrictions were widely applied. This will reset all settings and permissions.
Be sure to test after making changes to confirm the Files app is working as expected. Let me know if any of those suggestions help or if you have any other questions!