My Counter Strike: Global Offense game automatically restarts my computer before it finishes loading up, I don't see a loading screen or a menu screen. I've never played it before and all I've done is put it as a desktop Icon, I did some similar research on someone who had the same problem (but with Skyrim) and have yet to find any solution.
Steam – Why does the computer restart every time I try to play CS:GO
counter-strike-global-offensivesteam
Related Solutions
You should put those settings in the designed steam option for the game.
Right click on CS:GO -> properties. Select set launch options... and type your settings
Example: 
This will save your settings.
I believe only offline play is supported for a shared copy of CS:GO.
http://forums.steampowered.com/forums/showthread.php?t=3206227
Trying to find an official statement from Valve, but the link above has users talking about this exact situation.
Best Answer
You are most likely experiencing a STOP error which causes your system to stop responding and your computer is not able to recover from it. STOP errors are more commonly known as Blue Screens of Death or BSODs. However your computer restarts immediately rather than show you the actual error message (see TZHX's comment how to fix that). STOP errors are generally caused by hardware, drivers or system updates. It's difficult to diagnose exactly what is wrong from the information provided, so I would recommend that you ensure your system is up to date by downloading the latest operating system updates, drivers and verify game cache. Outside of the game, malicious software such as trojans and root-kits can cause this behaviour so scan your computer to be sure.