I occasionally get a notice to install software updates on my Mac desktop computer – with Office 2011. The last one was the 14.7.0 update dated November 15, 2016. I said Install, then it downloaded and went through all the steps – License, Destination, Installation Type, etc. When I’m asked for my password, I put in the one I’ve always used for this system – and it doesn’t work. I’ve tried two other passwords associated with my Mac and Microsoft. No luck. Many systems will have a way to retrieve a password but I don’t find it on this system. What can I do? Thanks.