Office 365 apps using the wrong default email app

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New Contributor

Hi all.

 

In Windows 10, I had set Outlook as the default email app. I had previously used Mozilla Thunderbird as the email app on the same computer.

 

When I am in Word or Excel and choose to share a document as an email attachment, Word/Excel opens up Thunderbird and attaches the document to an email.

 

What can I do to make Word/Excel use Outlook as the default email?

 

Thanks in advance.

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