I guess I'm relatively lucky. Live Mail 2012 (Build 16.4.3564.1216) is working relatively well on my Win 7 Pro desktop ... with one exception.
The batch of Windows Updates I installed on Jan. 23 included KB 3093594. Since that date, one of my Hotmail accounts hasn't downloaded any messages from the server. A separate Hotmail account and an Outlook.com account seem to continue working and syncing normally.
Guess I could try to remove that update, or to switch switch that account to an IMAP account as suggested here, but I'm still holding out hope that all will be made right eventually.
I'm utterly non-technie and so I am worried about the consequences of trying to un-update or delete/change an account. Would hate to lose everything, or even some things.
Looking forward to any counsel from wiser participants.
Thank you.