DRIVER_POWER_STATE_FAILURE — Causes & Fix
Windows Stop code 0x0000009F (DRIVER_POWER_STATE_FAILURE) means a driver was in an inconsistent or invalid power state — typically during sleep, hibernate, or wake.
- Applies to
- Any Windows PC
- Time to fix
- 30 minutes – 2 hours
What it means
Causes include an outdated driver that mishandles power transitions (often network, GPU, or chipset), or buggy power settings. This is a Windows Stop error (a "bugcheck" / blue screen) documented by Microsoft. The blue screen shows this code; more detail sits in the crash dump (%SystemRoot%\Minidump), which usually names the specific driver or component at fault — a free tool like BlueScreenView or WinDbg can read it.
Symptoms
- Blue screen citing DRIVER_POWER_STATE_FAILURE
- Crashes when entering or waking from sleep
How to fix it
- 1
Update power-related drivers
1. Update chipset, network, and GPU drivers. 2. Roll back any driver updated just before the crashes.
- 2
Adjust power settings
1. Temporarily disable fast startup and sleep to confirm the driver, then fix it.
Frequently asked questions
Why does my PC crash on sleep with 0x9F?
A driver isn't handling the power transition correctly. Update chipset/network/GPU drivers; the dump names the specific one.
Last updated July 20, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.