How to disable visual "dots" in Visual Studio Editor
How can I can disable the "dots" for spaces in Microsoft Visual Studio?
Edit -> Advanced -> untick View White Space.
You've enabled "Show spaces". Turn them off with Ctrl+R Ctrl+W, or Edit > Advanced > View Spaces
For Visual Studio 2010 or later:
Ctrl+E,S
Keyboard shortcut : Ctrl R + Ctrl W