Sony Vaio keeps restarting with blue screen.

Hi, my Sony Vaio PCG-8W1M which runs on windows 7, And I'm not sure about the service packs. It has Microsoft installed If that's any help, but my problem is when i start my Vaio up the Vaio sign lights up and a green square is behind it, it then goes to the "starting windows" with its logo and straight after restarts again, it doesn't allow me to pick safe mode or any mode only the option to pick "launch repair" or "start windows normally" and if I pick normal it will do the same thing, repair has done nothing, I can't restore as it doesn't let me.
SOMEONE PLEASE HELP!

 

you can get more boot options if you start pressing F8 AFTER your sony splash screen during startup.

this is called advanced boot menu

choose: "disable automatic restart after system failure"
let pc blue screen now
write down the error code it gives you. e.g. 0X00000ED

post results here =)

 

Hi, thanks for the quick reply, I did it and the code at the bottom reads :
0x00000050 (0x9A00C030, 0x00000000, 0x8325BF1C, 0x00000002)
Please reply back asap.

 

Have you added any hardware or software recently? :confused

Anything unusual happen before this problem?

 

just gonna post my personal notes on 0x50 bsod

1. bad ram ?
2. infected MBR ? fixboot fixmbr *NEW*
3. it has been known that beep.sys is infected
4. Try a different CD-DVD-rom drive