How to find NBA 2K12 main game folder

To find your NBA 2K12 main game folder
(How to Install Patches)

First, Download the Patch you want to install then extract it.
To Extract a file: Right click the file and select "Extract"
(If you can't see any "Extract"option then you should download WinRar)

Copy all the files inside the folder after extracting then go to NBA 2K12 main folder.

To find NBA 2K12 main folder:

 

● If you have the Steam version of the game

you can find your main NBA 2K12 folder here;

C:\Program Files\Steam\steamapps\common\nba 2k12

● The default DVD version of the game installs to;

C:\Program Files\2K Sports\NBA 2K12

 (This is the easiest way to navigate to your main folder)

● You can also just Right click your NBA 2K12 game desktop shortcut, click properties, and then click "Open File Location" to find your installation/main folder.

This is the main folder

 (Click the image to enlarge)

Once you're already in the NBA 2K12 main folder,
You can now replace/overwrite the files from the patch.
Very simple, Isn't it?