Task Manager > Startup tab and disable whatever printer software is loading at startup and trying to connect to it. There is no reason to have printer software loading at startup as the status monitor loads on first print anyway for almost every printer.
Those round borders are truly awful with square buttons. It's not even elegant round corners. Looks like they've been cut off too sharply. The more I see those round window frames the more it looks like a cheap hack from OS X.
Everything has been designed on 11 for the taskbar to be at the bottom, so even if you moved it to the top with StartAllBack etc then notifications and things will still appear at the bottom as those system items consider the taskbar being at the bottom.
Just installed StartAllBack and notifications appear to be at the top of the screen along with my taskbar.
This is one of the problems with 10/11 and needing 3rd party tools to fix so many things to how they should be - 3rd party tools might fix something at some point, only to be incompatible until updated with a later update, etc. one of the reasons I dislike 10 so much - I spent a lot of time on an older release getting everything how I needed it to be only for an update to break all that and it just isn't worth the time potentially having to redo it all every now and again with updates.
Microsoft developers need a good slapping around the head at the very least.
It's annoying and MS tend not to listen to anyone but their inhouse focus groups which are usually out of touch with the general market.