I haven't used the Win10 install much, but just to nitpick:
- 2. Excessively or extremely large (...)
3. (computing, of software) Excessively overloaded with features (...)
In my book, both apply :-P
Without the rollback and backup stuff you mention, the frickin thing is still huge.
Don't get me wrong, but just the other day I was reminiscing with a friend about the times when our PCs ran at 4,77 MHz and how we dreamt of what those machines could do if they ran at 40 or even 400 MHz. Today, those things run at >2 GHz speeds on several cores (!), and most of the times we still wait and wait and wait ... which is the "bloat" I'm talking about. The waiting is in large parts due to -- but not exclusively and not only on Win machines -- modern OS architecture and feature bloat. Why MS is still pushing every last feature to every last machine instead of giving users a way of opting in and out of certain aspects of the OS only a small part of the user base will ever use is beyond me (as are most of their decisions lately). Yet, you have to click through several pages of privacy settings when installing Win10, unless you click "MS knows best, don't bother me with what it collects and phones home". What's wrong with a "Chose the components you wish to install now and add others later" option, so that for example desktop users can skip all the shiny new touch and tablet kinda stuff?!