Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Can not set Outlook as default email client after using Thunderbird

  • 1 reply
  • 1 has this problem
  • 83 views
  • Last reply by christ1
  • Archived

Jason
Jason

Since using Thunderbird as the default email client. I have changed the default client back to Outlook 365. However, When I try to send email Thunderbird still opens.

Since using Thunderbird as the default email client. I have changed the default client back to Outlook 365. However, When I try to send email Thunderbird still opens.

All Replies (1)

christ1
christ1
  • Top 25 Contributor
  • Moderator

This may better be asked in a Microsoft forum.