Need Counter strike global offensive game Instalation Help

I bought this original game.
and Now I am not able to install this game.
I installed this game and only steam folder found.
Not any trace of Counter Strike Game.
And Not any help to install the game.
Please any one can help or give link to Step by Step to install the game.

Thanx.
Answer #1
To install the game, you must use Steam platform:
http://store.steampowered.com/
Login to your account, double click on the game, and install like a regular game.
Answer #2
https://support.steampowered.com/kb_article.php?ref=5357-FSQM-0382 by the way. dont forget to keep ur original serial key and Activate a Product on Steam…. https://support.steampowered.com/kb_article.php?ref=5414-TFBN-1352
Answer #3
are there any ways to convert the steam version to non-steam version

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