(It's the same value found in the open\command key) You'll need to create both the opennew and command keys then add the url to the default value. The fix: add the following value to the registry. While Outlook 2003 users will see the Locate link Browser dialog. Clicking in the Always use this app box will not stick the dialog comes up each time you click a link. Users of Outlook 2010 and Outlook 2007 will see the following choose application dialog. If the error message references 'restrictions in effect' or 'organization's policies are preventing', see Tip 540: Operation Cancelled Due to Restrictions for the solution. When Edge, Chrome, or other browsers are set as default, links work fine only Internet Explorer has a problem opening links. The problem: Clicking links in email open a file browser dialog titled Locate Link Browser when Internet Explorer is set as default. This time only 32-bit versions of Office 2010, plus Outlook 2007, and Outlook 2003 are affected.
Another week, another problem with Outlook and Windows 10.