Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
It was my first action. Doesn't help.
There is also some interisting bug. I thinked that it's something wrong with my Office 365 activation, that stay from Office 2013, goes to site and deactivate my PC. After that Office 2016 notified me, that i have no activation on this PC and asked me for email + password of my Office 365 account. I re-enter my credetinals, but after that i have same picture as at start: Error 0x80072F8F while activating.