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  1. Windows 8 Windows8 won't start. KERNEL_SECURITY_CHECK_FAILURE

    Hi to all, my windows8 won't start anymore after many months of use. It shows me many horizontal noisy lines and it says me in a blue screen with a smile ":(": KERNEL_SECURITY_CHECK_FAILURE When i tried to boot while pressing ALT+F8 it plays a loud long "beepeeepeeepeep", shows: "preparating...