Each time I go to open an application is asks me each time to sign in and when thats done its gives me an identity error for word, excel, outlook, does not matter. Same thing every time.

I have installed and deactivated some subscriptions a few times as I had to with new pc install and compatibility issues. But I still have one active licesnse on PC out of 5 that I am allowed, but cannot.

Hi Steven,

Please first go to Office 365 portal and check if your machine has been successfully activated. To check this, click the Office 365 settings icon from the portal and click software.

Also, this forum focuses on questions and feedback for Windows-based Microsoft Office client. Since your query is directly related to Office for mac, I would suggest you to post in the forum of Office for Mac.

Please provide the complete error message there, so that our support engineer can understand your query better:

http://answers.microsoft.com/en-us/mac/forum/macoffice2011?tab=Threads

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

Regards,

Ethan Hua
TechNet Community Support