Run SUMO (Software Update Monitor) and it said that there's update for Teamviever so I started Teamviewer with admin rights and clicked check newer version and then did same on other comp where everything went smoothly but on 1st comp things didn't go smoothly since Teamviewer said that there's some error and said check log.
On next attempt it said that there's update going on and then again said check log after erroring, next step was to log in to admin-account and try there but nothing happened so did uninstall and then reinstall on fresh download but still version was outdated.
Next step was that I deleted Teamviewer-folder (that was task itself since admin didn't have rights to delete folder by default (if not admin then who does)) and tried installing Teamviewer again but now it doesn't install at all and only traces of Teamviewer are files in Temp-folder and probably registry entries.
So I'm puzzled totally since nothing is blocking installation (on installing from fresh download on admin-account Windows Security gave usual warning about not trusted etc) and previous updates have gone smoothly.
Can't attach log and won't convert it to pdf either but to my eyes nothing un-normal on log.