Sure you're not running some old Insider build? Because it seems it refuses to start instead of crashing.
1) Import this registry key http://startisback.com/Enable_Crash_Reports.reg
2) Create C:\dumps folder
3) Crash
4) Send me dmp file from C:\dumps folder
10 posts later I got it, you had control center on network icon click if you had Win10 corner icons on. Newer builds enabled Win10 network UI and you don't like it, you care only about Win10 calendar and don't want to reconfigure icons.
too bad