Consider the following scenario:

• You are running a Windows Vista-based computer.
• You enter the Basic Input/Output System (BIOS), and then you change the Internal wireless device setting to Hidden.
• You restart the computer.
• The computer enters hibernation.
• You resume the computer from hibernation, and then you enter the BIOS again.
• You change the Internal wireless device setting to Enabled.

When you try to restart the computer in this scenario, you receive the following error message:

*** Hardware Malfunction
Call your hardware vendor for support
NMI: Parity check / Memory Parity Error
*** The system has halted

Consider the following scenario:

• On a Windows Vista-based computer, you try to print a document to an XML Paper Specification (.xps) print queue.
  Note: The document does not have to be an .xps document.
• The computer is put into standby.

In this scenario, after you resume the computer from standby, the print job is removed from the print queue, and the document does not print.

Consider the following scenario:

• You use a Windows Vista-based computer that has a USB microphone device.
• You open the Sound and Multimedia tool (Mmsys.cpl).
• The computer enters sleep or hibernation.

In this scenario, when the computer resumes from sleep or from hibernation, you cannot use the USB microphone device to record audio.

Note: A built-in microphone may be attached by using a USB connection internally. In this scenario, you may also experience this symptom.

You receive the following Stop error message after you resume a Windows Vista-based computer from hibernation:

Stop 0×000000FE (parameter1, parameter2, parameter3, parameter4)
BUGCODE_USB_DRIVER

This problem occurs randomly. However, this problem is more likely to occur when multiple USB devices are connected to the computer.

When a RunSynchronous command runs for a long time during the audit mode of an unattended Windows Vista installation, the Windows Vista-based computer may enter a sleep state. In this scenario, if the administrator password is not set, the computer does not resume from sleep automatically. The computer may be permanently locked, and you may have to reinstall the operating system to recover.

Consider the following scenario:

• You are running Windows Vista on a portable computer.
• The screen resolution is set to a resolution that is greater than 1024 × 768.
• You close the lid of the computer, and then it enters sleep mode.

In this scenario, when you open the lid of the computer to resume from sleep mode, the resolution changes to 1024 × 768.

This problem does not occur on desktop computers. Also, this does not occur on a portable computer when you use the Start menu to put the computer into sleep mode.

Consider the following scenario. You enable the hybrid sleep feature on a Windows Vista-based computer. The computer has PS/2 devices that are connected. The computer experiences a power loss. In this scenario, the PS/2 devices may not function when the computer resumes power.

Consider the following scenario:

• A Windows Vista-based computer is awakened from sleep by a magic packet.
• The WakeOnLAN feature is enabled on the computer.

In this scenario, the computer desktop is displayed unexpectedly.

Note: For more information about magic packets, see the “More information” section.

Consider the following scenario:

• You use a computer that is running Windows Vista Ultimate or Windows Vista Home Premium.
• The system is configured to use a digital cable tuner.
• You watch Live TV in Windows Media Center.
• You put the computer into hibernation or into sleep, and then you resume the computer.

In this scenario, Windows Media Center may stop responding (hang). Or, Windows Media Center cannot find the OpenCable Unidirectional Cable Receiver (OCUR) tuner. In some scenarios, you can watch TV again if you press the Live TV button several times. In other scenarios, you must restart the computer to watch TV.

Consider the following scenario:

• You use some embedded USB devices on a computer that is running the Windows Vista operating system.
• You put the system into standby.
• You resume the computer from standby.

In this scenario, you may receive a Stop error that resembles the following:

STOP 0×000000FE ( parameter1, parameter2, parameter3, parameter4)

Notes:

• Standby is also known as sleep mode or S3 mode.
• The four parameters in the Stop error message vary depending on the configuration of the computer.
• Not all “Stop 0×000000FE” error messages are caused by this problem.