After move from win7 to win8 I've got 2 problems, one of it - notebook not wake up, just immediate reboot and have got minidump. I installed tool to open this minidump, and found problem: Probably caused by : ESD7SK.sys Go to Computer Management tool and disable: * ENE PCI Memory Stick Card Reader Controller * ENE PCI Secure Digital / MMC Card Reader Controller * ENE PCI SmartMedia / xD Card Reader Controller After that restart, and all is fine