Acer4720z
Getting hanged

Hi i'm using acer 4720z for past one year.now i'm facing new problem like the system getting started normally and we can run any application, everything working fine but after 5 min its getting hanged ..even if i press ctrl alt del its not working.i cant able to shutdown the system .. i directly switched off the power.again if i start the system for first 5 min its working normally and again hanged..please provide me the solution???

Company: Acer4720z
Country: India

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