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Microsoft Office 2013 is currently using Thunderbird as its default e-mail program. I want Office to use Outlook. How do I change this?

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How do I change the e-mail program that Office 20113 uses?

Say I have an Excel spreadsheet open that I want to share..... I go to File : Share : E-mail : Send as Attachment. I want Excel to use Outlook. It's currently using Thunderbird.

Windows 10 machine.

In Windows Settings, Outlook is set as the Default e-mail program.

In Outlook, the box beside "Make Outlook the default program for E-mail, Contacts, and Calendar" is checked.

As far as I can tell, this should make the Office 2013 applications use Outlook. But they still open Thunderbird and start an e-mail using the first/default Thunderbird account.

How do I change the e-mail program that Office 20113 uses? Say I have an Excel spreadsheet open that I want to share..... I go to File : Share : E-mail : Send as Attachment. I want Excel to use Outlook. It's currently using Thunderbird. Windows 10 machine. In Windows Settings, Outlook is set as the Default e-mail program. In Outlook, the box beside "Make Outlook the default program for E-mail, Contacts, and Calendar" is checked. As far as I can tell, this should make the Office 2013 applications use Outlook. But they still open Thunderbird and start an e-mail using the first/default Thunderbird account.

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Please check registry key: HKEY_CURRENT_USER\Software\Clients\Mail

In search type 'Run' Select the 'Run.app' Type: regedit Locate this registry entry: HKEY_CURRENT_USER\Software\Clients\Mail on right side double click on 'Default' Enter 'Microsoft Outlook' in 'Value Data'

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Perfect. Thank you!