Consider the following scenario:

• You are running a Windows Vista-based portable computer that has multiple USB devices or that has a docking station that has multiple USB devices.
• You put the computer into the “Hibernate system” power state (S4).
• You bring the computer out of the S4 power state.

In this scenario, you may receive the following error message on a blue screen:

Stop 0×000000D1 ( parameter1 , parameter2 , parameter3 , parameter4 )
DRIVER_IRQL_NOT_LESS_OR_EQUAL

Note

• The four parameters in this error message vary depending on the computer’s configuration.
• Not all “Stop 0×000000D1″ errors are caused by this problem.
• Depending on the computer settings, the Windows Vista-based portable computer may restart automatically after the error message appears on the blue screen.