Unable to resize a batch of photos using the built-in Windows 10 resize feature with the Send To option:
1.  Open a folder containing photos.
2.  Select some photos.
3.  Right-click selected photos and choose "Send to."
4.  Click on "Mail Recipient" in the listed options in the pop-out menu.
5.  Notice that the "Attach Files" dialogue box displays.
6.  From the drop-down menu, I selected "Smaller: 640 x 480"
7.  An estimate of the new total file size is given... press the Attach button.
8.  Notice that the progress of the file re-size operation displays, "Preparing to send."
ISSUE:  receive error message, "There is no email program associated to perform the requested action..."
Comments:
Not true, I went into the Control Panel and associated the Windows 10 Mail program as the default email program.  Please see attached screen shots as verification/clarification.  Is there something I am missing?  I am using Windows 10 Pro.  Do you need any more information from me?  Any help is much appreciated!  This should be a simple, useful and expected process.  Thank you for any help.