New
#11
Ditto here. Outllook 2010, Win 10 fully patched. If I choose Edge as the default, hyperlinks work. Firefox as the default, it works. IE 11 as the default works everywhere except Outlook 2010 where it nags me about how to open the hyperlink, and the "Always" checkbox does nothing. If I email a hyperlink to myself, then check web mail in IE 11, hyperlinks open in IE 11. Web mail in Firefox and hyperlinks open in Firefox. So it's clearly an Outlook 2010/Win 10 issue.
I've done it all. Reset IE 11, checked the registry under HKEY_LOCAL_MACHINE\Software\Classes\htmlfile\shell\open\command, and at HKEY_CLASSES_ROOT \.html. All is fine and exactly as my other Win 7 box.