Help no addon file found

[Mystikalman80]

My "Addon" button isn't showing up on the character select screen.
My target path is "C:\World of Warcraft\WoW.exe"
I do not have two WoW's. I have re-installed WoW twice and to access my addon folder it should look like this C:\World of Warcraft\Interface\addon, but it stops at Interface.
I have searched the internet and can't find a solution. Can someone please help? Thank you.

-Mystikalman