Mail app will not open on 10041.

After upgrading to 10041 the mail app was missing. Installation through the store failed with Event ID 214, AppReadiness

Code:

'microsoft.windowscommunicationsapps_8wekyb3d8bbwe' install failed for xxxxxxxxxxx@xxxxx.com. Error: 'To install this application you need either a Windows developer license or a sideloading-enabled system.' (0.8124167 seconds)

Following this guide I set Allow all trusted apps to install to enabled in Group policy and it installed OK but will not open. Event ID 5973 is seen in event viewer

Code:

Activation of app microsoft.windowscommunicationsapps_8wekyb3d8bbwe!Microsoft.WindowsLive.Mail failed with error: The application cannot be started. Try reinstalling the application to fix the problem. See the Microsoft-Windows-TWinUI/Operational log for additional information.

and in TWinUI/Operational log is the error blocked with error 0x80073CFC because its package is in state: 64.

Code:

Activation of the app microsoft.windowscommunicationsapps_8wekyb3d8bbwe!Microsoft.WindowsLive.Mail for the Windows.Launch contract was blocked with error 0x80073CFC because its package is in state: 64.

Any ideas what to try?

Hello Adam,

This is the suggested solution below if you haven't already tried it. :)

In this Windows 10 build 10041, the Mail, Calendar, and People apps may be broken due to a licensing issue with the Store Beta. To get these apps working again, you need to follow these steps:

• Open powershell as administrator
• Run the command Get-appxprovisionedpackage –online | where-object {$_.packagename –like “*windowscommunicationsapps*”} | remove-appxprovisionedpackage –online
• Re-install Mail, People and Calendar from the Store (green tile)

To get it working you need to first remove Mail, Calendar and People app using an elevated PowerShell, see this post: Windows 10 Technical Preview Build 10041 now available - Page 7 - Windows 10 Forums.

When done go to the Windows Store (the "real" one with a green tile in Start Menu > All apps > S > Store (important: not the Store Beta)) and search for Mail, Calendar and People app and reinstall it.

Works like a charm :).

Great news Adam.

brink is always faster than a thought :). My reply was unnecessary, Brink had already answered.