Hi,
i completed the test, but without any result. I have "good news", yesterday i installed the new intel vga driver and today i coludn't get into the windows. This time the screen was not black as before but it was flashing. I sometimes could see the cursor but i couldn't do anything. In safe mode i removed the official intel vga driver and after this i could get into the windows. So i'm using the microsoft driver and now i will test, how does it work.
Thank you for your help and kind regards!
Gergely Kocsis