Windows 7 addons

Hey, I have Windows 7 and just got GMod. How in the world do i add addons to it?!?!?!?!
Please Help!!!

It’s the exact same as Windows XP / Vista. Program Files (x86 if you’re using 64bit 7), steam -> steamapps - > account name -> Garrysmod -> Garrysmod -> Addons.

Thx!!!