Send macOS Files with Windows Email Application

If you often use the Windows email application to send emails, you can easily attach macOS files to your messages. Do the following:

1. Let's assume that you've decided to send your photo to your mom. Right-click the photo in macOS, point to Share > More. The Extensions section of the macOS System Preferences opens.
2. Scroll down the list of extensions and select Send with Windows Email App (you have to do this only once).
3. Right-click the photo again and select Share > Send with Windows Email App. The default email application starts in Windows and a new message is being created. The photo you selected is attached to the message. You only need to enter the recipient's email address and email subject.