Fix Outlook and Office 365 problems
with Microsoft Support and Recovery Assistant for Office 365 see here
Problems with Outlook
Outlook stops responding
I can't send or receive email
Outlook keeps asking for my password
Shared mailboxes or shared calendars don't work.
Outlook keeps saying "Trying to connect..." or "Disconnected"
Trouble setting up Office
I get an error when I install Office
I can't activate Office
Problems with OneDrive for Business
I can't sync my files with OneDrive
I can't install OneDrive
Problems with other Office apps
I can't sign into Skype For Business
I can't get email on my phone
I'm having trouble opening or signing in to Outlook on the web
I can't install, connect, or enable Dynamics 365 for Outlook