After a graceful shutdown by PowerChute, Windows 2003, 2008, or 2012 system fails to turn on when utility power is restored.

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After a graceful shutdown by PowerChute, Windows 2012 system fails to turn on when utility power is restored.

Issue:
After a graceful shutdown by PowerChute, Windows 2012 system fails to turn on when utility power is restored.

Product:
PowerChute Network Shutdown
PowerChute Business Edition
PowerChute Serial Shutdown

Environment:
Windows 2012

Cause:
After a graceful shutdown by PowerChute the server fails to turn on when utility power is restored. Due to changes in the power management feature in Microsoft® Windows Server 2012, some servers with an ACPI (Advanced Configuration and Power Interface) BIOS will not turn on when utility power is restored after an outage. The following is an example of what may occur:

1. A server is attached to an APC UPS and running PowerChute. PowerChute is configured to shut down the operating system when the UPS has been on battery for a specific time.

2. When the utility power fails, causing the on-battery event, PowerChute commands the operating system to shut down gracefully.

3. Because ACPI power management is controlled by the operating system rather than by the BIOS, when the operating system completes its graceful shutdown, it commands the server to turn off.

4. The UPS remains on battery until its shutdown delay time has expired. When utility power is restored, the UPS provides power; the server does not turn on.

Solution: