Inserted a Blu-ray DVD (2012): system cannot recover

[saulo866]

It was my first time to watch a BD Movie (title: 2012), after upgrading to 6.6.2.4 (from 6.6.2.3)

My system is a desktop Win7 X64 Ultimate

As soon as the BD was spinning I noticed something went wrong: no sign of media in Cyberlink Power DVD. From File Explorer, if I clicked on drive F (the BD drive) the hourglass kept running without showing the presence of media.

My system stalled. I had to force reboot. From then on:
1. system is stuck on Windows LOGO
2. startup repair yes can be done, can be completed but my Win7 cannot be restarted later! always stuck on windows logo
3. Restore to 3 previous points (from repair console) was completed, but no outcome: at next normal restart the system is still stalled.
4. cannot go into F8 debug or safe mode

Please help! I have setup my PC with several applications and tuned them up. If I made a clean reistall of Win7 I will need 7 working days to restablish my yesterday conditions...

Thanks
Saulo