Windows 10 Creator Update Auto-installed cruft
I let the stupid computer connect to the internet, and it downloaded a bunch of stupid brain-dead applications like "Candy Crush". Who needs that on a desktop computer?!? The worst part is that even when you remove them, they come back.

Windows 10 Creator Update Tile groups
Microsoft now lets you create Tile groups again. Like, WOW! Now if only they'd get rid of those dumb tiles entirely!

Windows 10 Creator Update Virtual trackpad
Windows 10 now includes a virtual trackpad to go along with the virtual keyboard. I fail to see the point.

Windows 10 Creator Update Custom colours
It's apparently now possible to have your UI in more colours than just blue! Too bad it applies to barely anything.

Windows 10 Creator Update Themes
Also themes! Wow! Too bad there is no such thing as a custom theme anymore either! I also note for no other reason than I can the loss of the high contrast schemes.

Valid HTML 4.01 Transitional Valid CSS!