Everything abut Microsoft is frustrating. Constant popupups, talking nagging paper-clips, can only log in one user account at a time unless you pay out the nose, a window8 GUI trying to shove apps down out throats even if we're a desktop, all versions of word are more incomparable with each other than open office is, how they try to force me into bing, how they try to obsolete older versions like XP - even though it works perfectly fine on older PC's, even worse, how they try to obsolete older versions of office. Don't even get me started with VB VBscript, and their basterdized versions of html and javascript.
However, all of these annoyances are not problems, they are symptoms of a company who can't compete on service, so instead they try to compete by shoving proprietary crap down our throats. Then they wonder why companies that 'get it' like google, waltz in and rip them a new asshole, while linux effectively kicked their ass in the dataceter market. I know being able to gouge the fuck out of people with proprietary licensing is like a security blanket to them, but really, in order to compete they just need to give it up. It's dulling them.