NTLite - The Ultimate Windows Customization Tool
ShutUp10 - Free antispy tool for Windows 10
Win Toolkit - BUGS: Do not post bugs in the comments.
W10Privacy - Very advanced tool to control Windows 10 privacy.
Ultimate Windows Tweaker - Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows.
WindowsSpyBlocker - Block spying and tracking on Windows