Assume you connect a high-speed USB 2.0 device to a computer that is running Windows Vista or Windows Server 2008. After you put the computer into hibernation and then resume the computer, the USB 2.0 device is recognized incorrectly as a full-speed device instead of a high-speed device. Therefore, the transmission speed over the USB connection is significantly reduced.

This problem occurs occasionally.

You have a Windows Vista-based computer that has an Secure Digital (SD) memory card inserted. You resume the computer from the system Hibernate mode (the S4 power state). Then, you try to shut down or restart the system. In this scenario, the system may stop responding on the shutdown screen.

When the issue occurs, you must remove the SD memory card to recover the system. Or, you must press the power button to forcibly shut down the computer.

Notes

• Removing the SD card may cause data loss.
• Sometimes, after you resume the computer from the system Hibernate mode, some applications may stop responding.
• This problem does not occur on a Windows Vista Service Pack 1 (SP1)-based computer.

So you just woke up your PC and one of your USB devices isn’t working as it should? Here’s a half-dozen Microsoft suggestions on how to troubleshoot the problem. Keep reading →

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