entschuldingung aber mein Deutsch ist schlecht, so ich schreibe auf Englisch. I have bougth a notebook Acer Aspire 7745G-434G50Bn and after less than one week using the computer starts to stop work and restart automatically. In one of these restart the computer showed a blue screen and could not find the operational system and I had to shut down manually and turn on again the computer to everything come to the normality. Someone know what problem can be?