Windows 7 Sleep Mode Issues After SP1 Is Deployed

Some Windows 7 customers reported issues with putting their computers into Sleep Mode after they installed Service Pack 1 RTM.

A member of the Microsoft Product Quality Team has confirmed the problems and offered a bit of insight into what’s causing them, as well as some advice on what users can do to fix the glitch.

“Prior to the SP1 installation the system properly went into sleep mode and properly woke up. But, after installing Windows 7 SP1 you may not be able to properly put the system into sleep mode,” the Microsoft Product Quality Team representative said.

“You have to press the power button to force the system restart, and it will show an error that the machine was not shut down properly.”

Users that have a SCSIport miniport driver as the startup device driver on their machines and that started experiencing issues after SP1 RTM was deployed need to install KB 2495523.

This particular hotfix is designed to resolve problems related to hibernation according to the software giant, but it apparently also covers Sleep Mode.

“This issue occurs because the operating system cannot call the crash dump file creation and hibernation features correctly if the operating system starts from a device that uses a SCSIport miniport driver,” the software giant said.

There is an additional workaround, if the hotfix above does not work. Customers are required to customize the power options associated with their copy of Windows 7 SP1.

“Open "Power options" in the control panel. Change the active power plan by clicking the "Change plan settings". Then click "Change the advanced power settings". Scroll down the "Sleep" option and expand it. Change the option "Allow hyprid sleep" to off. Click "OK",” the Microsoft Product Quality Team member added.

Windows 7 SP1 RTM and Windows Server 2008 R2 SP1 RTM are available for download here.