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Lenovo 'ThinkPad X1 Carbon' or 'ThinkPad T420s' laptop with Windows 7 operating system hangs during shutdown and finally stops with a fatal system error (BSOD) after the installation of DeviceLock

DESCRIPTION

The Lenovo 'ThinkPad X1 Carbon' or 'ThinkPad T420s' laptop with Windows 7 operating system hangs during shutdown and finally stops with a fatal system error (BSOD) after the installation of DeviceLock.

COMMENTS

Both Lenovo ThinkVantage (Power Manager utility) and DeviceLock hook the same keyboard function (Power IRP Function) of Windows keyboard driver, so there is a conflict when calling the Power IRP Function at the first reboot or shutdown after DeviceLock is installed.

The issue will not occur after the second and further reboots or shutdowns.

RECOMMENDATIONS

Upgrade to the latest version of Power Manager utility by Lenovo (6.54 or higher).