Blue screen and unexpected shutdown

this incident happened to me yesterday,i searched the internet for games,then i found a game called''Mystery case files:Return to Ravenhearst''i found the game interesting so i downloaded it in my hard disk ,after i downloaded it there were two files,i extracted the first one,after it is finished extracting,suddenly my computer got slow,and it doesnt respond,so i restarted my laptop(vaio,windows vista 32-bit operating system)and i tried to extract it again,and it hangs again,so i restart it again,after that i open a mozilla then suddenly the screen turns to blue and it says

problem has been detected and Windows has been shut down to preventdamage to your computer.
>
>KERNEL_STACK_ERROR
>
>It this is the first time your've seen this Stop error screen, restart
>your
>computer. If this screen appears again, follow these stesps:
>
>Check to make sure any new hardware or software is properly installed.
>If
>this is a new installation, ask your hardware or software manufacturer
>for
>any windows updates you might need.
>
>If problems conintue, disable or remove any newly installed hardware
>or
>software. Disable BIOS memory options such as caching or shadowing, If
>you
>need to use safe Mode to remove or disable components, restart your
>computer,
>press F8 to select Advanced Startup Options, and then select Safe
>Mode.
>
>Technical information:
>
>***STOP: 0x0000007F (sorry i forgot)
>
>
>Collecting Data for crash dump ...
>Initializing disk for crash dump ...
>Beginning dump of physical memory.
>Dumping physical memory to disk: 100
>Physical memory dump complete.
>Contact your system admin or technical support for for further
>assistance.
>
> i was very nervous when i saw this,at first i thought the game i downloaded(the ravenhearst)a little while ago,has a virus,so i quikly deleted it,eventhough it has been deleted permanently,the screen always turn to blue after 15 minutes.
can anyone solve my problem
do i need th format my pc?

thanks.

0x7f bugcheck = UNEXPECTED_KERNEL_MODE_TRAP - CPU generated a trap not
caught by the kernel.

0x7f usually shows up after bad hardware install of some kind, but can
be software related like kernel stack overflow.

Since no new hardware, I would advise Vista system restore 1st -
START | type *rstrui *- hit enter | choose restore point prior to
yesterday's incident.

1. Do a System Restore to before you downloaded the game.
2. As a precaution, after System Restore is finished scan your computer for
malware.

http://www.elephantboycomputers.com/...moving_Malware

I am very very sorry,i put a wrong informations these are the corrections:

*KERNEL_STACK_INPAGE_ERROR*

*STOP:0xc00000077 (0xc0000185,0xc0000185,0x00000000,0x01501000*

i Am very sorry for giving the wrong info.
pls help me,
thanks

Not a problem with mistaken info provided - these things happen. I
would still follow the suggestion I provided - system restore - the
*rstrui *command.