Office 365 started having problems when I enabled One Note, which is one of those do it all apps That probably pissed off Emet just because it exists. Am troubled, though, because my Avast Internet Security Firewall is down (version 9.0.2008...). All other functions, including it's nice VPN Secure Line working fine.I use both firewalls, and if this is reality, I will learn to apply the Advanced Windows Firewall settings. Avast is incredibly versatile, though. I like Emet 4.0. I have had it for almost 2 months, with settings only configured, not apps.

try disable Avast for 1 hours and starting Office 365 again. Sometimes avast detect  as virus and frozen it.

Sounds effective. Thanks. Leaving house now for.... Appreciate that...