Outlook 2013 keeps asking for my outlook.com password

Thank you!

Take a look at this thread: Why is there no decent answer to resolve the issue of Outlook 2013 - Microsoft Community

It seems this problem is not going away.

I have noticed, that indeed, sometimes it doesn't matter, if you close the popup from the "X" and despite Outlook showing that it needs password - the e-mails still arrive and it still keeps functioning, BUT not indefnitely. At some point it stops updating and you could also see that the mailbox isn't updated under the status bar next to the "Need Password" notification.

Unfortunately, it did not work for me either. Although it seemed like it was working when I applied it, the next day it asked for my password again. It seems we are going to have to use Outlook 2013 like a trial program from now on - cancel password prompt every time we launch. Funny thing is I hit CANCEL and still Calendar and Hotmail messages arrive from outlook.com to Outlook 2013 with my previous settings, during the day.

I had this problem this year and canceled password prompt everyday till now.

Check out this thread: https://answers.microsoft.com/en-us/outlook_com/forum/outlk_win-outtop_classic-outsub_ofh/outlook-2013-will-not-retain-password-for-my/61d16c93-64b3-469f-8863-5c2d41e8885b?messageId=0c2fc1fc-739a-4676-88fb-d6b154d57aa1

I added this to registry:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Exchange\AlwaysUseMSOAuthForAutoDiscover (DWORD) and set it to 1.

I think it worked. I will see in the coming days...