![]() A person unlocks the computer by entering their user credentials.Īfter the credential is entered, the screen goes black, and remains black for as much as 10 minutes or longer. ![]() The computer is locked and left undisturbed long enough for the screen to go black, which is 20 minutes with the default power policy of "Balanced".The Windows Vista or Windows 7 computer is subject to additional security restrictions and security software, such as might be the case in the enterprise, or with mandated security settings and software such as DISA or DoD requirements.A Windows Vista or Windows 7 computer is running the "Aero" graphics mode.This article provides a solution to an issue where Windows black screen when unlocking a computer.Īpplies to: Windows 7 Service Pack 1 Original KB number: 2431700 Symptoms
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