HankiBlue screen, often during sleep or resume
0x0000009F
DRIVER_POWER_STATE_FAILURE
A driver did not handle a power-state transition correctly.
TRY THIS FIRST
Check the crash timing
Note whether the crash followed sleep, wake, shutdown or a driver change. Look in Event Viewer → Windows Logs → System at that time.
Read-only check
Result: Nearby device errors may identify the driver that needs investigation.
Still not working?
If a specific driver is implicated, check the PC/device maker’s update or rollback guidance. A dump analysis may be needed; avoid blaming a driver from its name alone.
Check the result: After a targeted fix, test the same sleep/resume scenario.
More detail →Sources & page details
Hanki's detailed guide · Reviewed
Choose the entry that matches where the error appeared. A code alone does not identify every cause. Commands are copied for you to review; this page does not run them.