Get the fix to “0x0000009F: DRIVER POWER STATE FAILURE” error for Windows XP, Vista, 7, 8, or 8.1 operating systems.

About the “0x0000009f” error

The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations.

Description and Symptoms

The error messages, alerts, warnings, and symptoms below are tied to this error.

Symptom 1: 0x0000009f error screen on startup

This error, which is also known as DRIVER POWER STATE FAILURE is usually triggered by a driver-related issue and usually appears after a fresh driver installation.

Screenshot for 0x0000009F error

A problem has been detected and Windows has been shut down to prevent damage 
to your computer.


If this is the first time you’ve seen this Stop error screen, 
restart your computer. If this screen appears again, follow
these steps:

Check to make sure any new hardware or software is properly installed.
If this is a new installation, ask your hardware or software manufacturer
for any Windows updates you might need.

If problems continue, disable or remove any newly installed hardware 
or software. Disable BIOS memory options such as caching or shadowing.
If you need to use Safe Mode to remove or disable components, restart
your computer, press F8 to select Advanced Startup Options, and then
select Safe Mode.

Technical Information:

*** STOP: 0x0000009F (0x00000001, 0x00000001, 0x00000000, 0x00000000)

Beginning dump of physical memory
Physical memory dump complete.
Contact your system administrator or technical support group for further

Causes of this Error

This error has been known to occur as a result of one or more of the following:

Cause 1: Outdated or misconfigured driver

The main cause of this error is a device driver that is outdated or misconfigured. This may happen after a system update, a disk read/write error, or a Windows update or reinstall.

Fixing “0x0000009f” on Windows

Windows Setup CD/DVD Required!
Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below.

Fix #1: Disconnect peripherals

If the 0x0000009F error is caused by a recently added new piece of hardware, try to following steps:

  1. Shutdown your computer
  2. Remove the new added hardware
  3. Power on your computer again
  4. Check if the error appears again

Fix #2: Update drivers

If the 0x0000009F error is caused by a driver installation, you can fix the error by updating your driver to its latest version or to a version that’s compatible with your current Windows version.

Follow these steps:

  1. Click Start
  2. Search for devmgmt.msc
  3. At Device Manager, right-click on the device you want to update the driver for
  4. Select Update driver
Device manager update driver screen

Device manager update driver screen

Fix #3: Run Driver Verifier

The Driver Verifier tool tests your currently installed drivers and can identify corrupt and problematic files. If the 0x0000009F error is caused by a driver, the Driver Verifier report can output problematic drivers.

The Driver Verifier is already installed on your Windows. To open it, follow these steps:

  1. Click Start
  2. Type cmd at the search results
  3. Right-click on Command Prompt and click Run as Administrator
  4. Type verifier when Command Prompt is open
  5. Hit Enter
  6. Select Create standard settings
  7. Click Next
  8. Choose Automatically select all drivers installed on this computer
  9. Click Finish
Driver verifier utility screen

Driver verifier utility screen

Fix #4: Check digital signatures of drivers

The sigverif tool verifies your system’s integrity by testing if the drivers you currently have installed have a valid digital signature.

If sigverif reports drivers that have invalid signature, try to disable the driver or update to its latest available version.

  1. Click Start
  2. Type sigverif in the search box
  3. Hit Enter
  4. Click Advanced
  5. Select “Look for other files that are not digitally signed”
  6. At the Look in this folder, type C:\Windows\system32\driversReplace C: with the letter of the drive where your Windows is installed on.
  7. Go to Logging
  8. Check the “Save the file signature verification results to a log file” checkbox
  9. Click OK
  10. Click Start
Signature verifier utility screen

Signature verifier utility screen

Fix #5: Uninstall problematic software

If the 0x0000009F error appears after a recent software installation, try to remove it to check if the error appears:

  1. Go to Control Panel
  2. Uninstall the program
  3. Restart your computer
  4. Make sure the program was uninstalled correctly

You can reinstall the program again and check if the error appears again after reinstallation.

Program and features uninstall screen

Program and features uninstall screen

Fix #6: Run sfc

  1. Click Start
  2. Type cmd in the search box
  3. Right-click Command Prompt
  4. Select Run as Administrator
  5. Type:
    sfc /scannow
  6. Hit Enter
sfc utility results screen

sfc utility results screen

Fix #7: Reinstall Windows

If none of the fixes above work to fix the error, reinstall Windows:

Reinstalling Windows will delete all files. Use Easy Recovery Essentials to backup your files before you proceed.

  1. Insert the installation DVD
  2. Restart the computer
  3. Press any key to boot from the CD when prompted to do so
  4. At the Install Windows window, select a language, time and keyboard method
  5. Click Next
  6. Click Install Now
    Windows 7 setup Install Now dialog, with repair your computer link

    Install Now (Windows 7)

More Information

Linked Entries

Support Links

Applicable Systems

This Windows-related knowledgebase article applies to the following operating systems:

  • Windows XP (all editions)
  • Windows Vista (all editions)
  • Windows 7 (all editions)
  • Windows 8 (all editions)
  • Windows 8.1 (all editions)

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