Abrupt termination trying to start a guest

[andyreas]

Hi

I really hope someone can help me with this. I've been running 2 instances of Windows 7 over the last 2 months without a problem. Today when i was about to start them i get a sudden termination via the guru meditation. I tried changing all the different values, amount of memory etc but nothing help. I then had to take a new release of Win7 and try to reinstall that in a new guest. As soon as the windows starting screen appears the same thing happens. I don't have a clue why. The only difference since the last working state is that windows update has done 5 of the newest updates. Except that the environment is the same. Please help.