I was having this same issue, and found a solution.
1) Log into
calendars.office.microsoft.com
2) Click on my office online
3) Under subscription services on the left, click outlook calendar sharing
4) Click on delete calendar profile (this only erases all shared calendars,
it doesnt do anyhting to your live ID)
5) after this you need to go into outlook, click tools, account settings,
published calendars and then change account, follow the instructions, next
next next and then finish
6) You can then click publish my calendar in outlook
7) I only get one shot at inviting people, so make sure you enter all email
addresses this first time
Hope this helps!
"Helen" wrote: