Problem: After Win10 upgrade, Skype for Business (Lync) crashes at the splash screen upon launch. The dialogue that follows allows you to see debug information, but it scrolls by quickly in a disappearing DOS window, so I cannot read it. I accidentally discovered, however, that if it is launched from an administrator's shell that it does launch without crashing. It would seem to be some kind of permissions problem introduced by the upgrade.
I have attempted both the quick repair and the online repair, with no joy. I have not tried the Microsoft Fixit to completely remove office because the rest of office is working fine and I don't have all day to uninstall/reinstall things, and I've done that about a dozen times with this Win10 upgrade anyway to no avail.
Is there a way to specifically just fix Lync without all the associated baggage of reinstalling all of Office 365 Pro?