Take a look here: Windows 10 zwiftapp.exe crashes on start - #12 by Johannes_Ertl
Blocking the facebook script in Internet Explorer worked for me. I think it is a workaround though…
EDIT: As @INIGO_LOPEZ mentioned, the Youtube Video in the Link mentioned above has been removed. Therefore I am adding a short description here:
- open “Internet Options” on your Windows 10 machine (the Options are in Internet Explorer, not Edge)
- open Tab Security
- select Zone “Restricted Sites”
- Press Button “Sites”
- Add the URL that caused the error, i.e. https://connect.facebook.net
- close and press o.k. (not sure if it requires a restart but maybe)
Hope this helps.
Frank