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Summary :
When you boot your computer, you may encounter an issue of drive power state failure. Do you know what causes the issue driver_power_state_failure? How to fix driver power state failure? This post shows you the answer and lists 6 solutions to this problem.
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What Is Driver Power State Failure?
When you boot or restart your computer, you may come across the error driver power state failure and you feel vexed about it. The detailed error message of this issue is ‘Your PC ran into a problem and needs to restart. We’re just collecting some error info, and then we’ll restart for you. If you’d like to know more, you can search online later for this error. DRIVER_POWER_STATE_FAILURE’.
As a matter of fact, the issue of driver_power_state_failure Windows 10 is a kind of Blue Screen of Death and occurs mostly due to incompatible drivers. The error code also indicates that a driver is in an inconsistent or invalid power state.
However, do you know how to fix driver power state failure Windows 10/8/7? If no, just read the following part to find the best solution.
Now, we will show you how to fix driver power state failure on restart with step-by-step guide.
Solution 1. Update Drivers
As we have mentioned in the above part, the issue of driver_power_state_failure Windows 10 may be caused by incompatible drivers. So, in order to solve the issue of Windows driver power state failure, you can update drivers.
Now, we will show you how to upgrade your drivers.
Step 1: Open Device Manager
Here are two ways to open the Device Manager.
- Open Control Panel, choose Hardware and Sound, and choose Device Manager to continue.
- Press Windows key and R key together to open Run dialog, input the msc and hit Enter to continue.
Step 2: Update the driver
In the popup window, you need to select the driver you want to upgrade and right-click it. Then choose Update driver from the context menu to continue.
When the process is finished, you can reboot your computer to check whether the issue of driver power state failure is solved.
If this solution is not working, please go to the next solution.
Solution 2. Remove External Hardware
The issue of driver power state failure Windows 7/8/10 may be caused by newly installed hardware. So in order to solve this problem, you need to remove this hardware.
So you can turn off your computer and remove the newly installed hardware. Then reboot your computer again to check whether the issue driver_power_state_failure Window 10/8/7 is solved.
Solution 3. Run Driver Verifier
Now, we will show you the third method to fix the issue of driver power state failure. It is to run Driver Verifier which can help you to test your drivers and can identify corrupted and problematic files. This tool will help you to find out the list of unsigned drivers in the system which may give rise to the issue of driver power state failure Windows 10/8/7.
Now, we will show you how to run the Driver Verifier with step-by-step guide.
Step 1: Open Command Prompt
- Type cmd in the search box of Windows 10/8/7.
- Choose the best-matched one.
- Right-click Command Prompt to choose Run as administrator to continue.
Step 2: Open Driver Verifier
- In the popup window, type verifier.
- Hit Enter to continue.
Step 3: Run Driver Verifier
1. In the popup window, select Create standard settings.
2. Click Next to continue.
3. Choose the button Automatically select all drivers installed on this computer.
4. Click Finish to continue.
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Then you are required to restart your computer for the changes to take effect.
When all steps are finished, you can know which drivers lead to driver power state failure issue. And you can choose to disable the problematic drivers or update them to the latest available version.
When you have solved the problematic drivers, you can reboot your computer to check whether the issue drive_power_state_failure Windows 10 is solved.
If this method is not effective, please go to the next method.
Solution 4. Change Power Settings
Now, we will introduce the fourth method to fix the issue of driver power state failure. To fix this error code 0x00000009f, you can change your power settings.
Follow the below guides to continue.
Step 1: Open Power Options
- Type Control Panel in the search box of Windows 10/8/7, select it and open it.
- In the popup window, choose Hardware and Sound.
- In the popup window, choose Power Options to continue.
Step 2: Change Power settings
1. Select the Balanced (recommended) and click Change plan settings.
2. Click Change advanced power settings.
3. In the popup window, please expand the Wireless Adapter Settings and Power Saving mode. Then change the Setting to Maximum Performance.
4. Find out the PCI Express and Link State Power Management in the Power Options window, and change the Setting to Maximum power savings to continue.
5. Then click Apply and OK buttons to execute all changes.
When you have finished all steps, you can reboot your computer to check whether the issue of driver power state failure Windows 8 is solved.
Solution 5. Run System File Checker
This part will introduce the fifth method to solve the issue driver_power_state_failure. You can run the System File Checker to check whether there is a corrupted files system that leads to the issue of driver power state failure.
Step 1: Open Command Prompt
- Type cmd in the search box of Windows 10/8/7 and choose the best-matched one.
- Right-click Command Prompt to choose Run as administrator to continue.
Step 2: Type the commands
- In the popup window, type the command sfc /scannow.
- Hit Enter to continue.
Related article: Quickly Fix – SFC Scannow Not Working (Focus on 2 Cases)
This scanning process will take a long time. So please don’t close this command window until you receive the message Verification 100% complete.
When all steps are completed, you can reboot your computer to check whether the issue driver power state failure is solved.
Solution 6. Reinstall Windows
If all the above solutions are not working to solve the issue of drive power state failure, you can choose to perform Windows reinstallation.
Before reinstalling your operating system, please back up your important files firstly.
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Now, we will show you how to reinstall the operating system.
Step 1: Create installation media
- To install Windows, the installation media is required.
- Click here to download and create the installation media.
Step 2: Start to install the Windows
- Connect the installation media to your computer.
- Enter BIOS to change boot sequence and boot from it.
- At the Install Windows window, select a language, time and keyboard.
- Click Next to continue.
- Then click Install now to reinstall your operating system.
Then you can follow on the instruction to complete the operating system installation.
Useful Suggestion
After you have solved the error driver power state failure on restart, it is recommended to create a system image. In this way, when you meet this issue next time or come across other problems, you can restore the computer to an earlier state rather than spending time to look for solutions and it is time-saving.
On top of that, creating a system image is an effective way to protect your computer and files. So back up Windows immediately.
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To create a system image, the professional Windows backup software – MiniTool ShadowMaker is strongly recommended.
MiniTool ShadowMaker enables users to back up the file, folder, disk, partition, and the operating system.
It can also perform some recovery solutions when some accidents happen.
What’s more, MiniTool ShadowMaker is also a clone tool which can help you to clone the operating system from HDD to SSD without data loss.
With so many powerful features, try MiniTool ShadowMaker Trial immediately or purchase an advanced edition.
Now, we will show you how to back up the operating system with step-by-step guide.
Step 1: Launch MiniTool ShadowMaker to enter its main interface
- Download and install MiniTool ShadowMaker on your computer.
- Launch it.
- Click Keep Trial to continue.
- Click Connect in This Computer to enter its main interface.
Step 2: Choose backup source
- Go to the Backup page and click Source module to continue.
- In the popup window, choose Disk and Partition.
- Select the system disk and click OK.
Step 3: Select backup destination
- Click Destination
- You can see there are five destination paths to be chosen. Choose any one based on your needs. It is recommended to choose an external hard drive to save the backup image.
- Click OK to continue.
Kindly reminder:
- MiniTool ShadowMaker enables you to set an automatic backup. Just click Schedule to continue.
- MiniTool ShadowMaker provides three backup schemes including Full backup, Incremental backup, and Differential backup. The Incremental backup is chosen by default and you can change it through Scheme.
- MiniTool ShadowMaker also provides some advanced backup parameters through Options.
Step 4: Start to back up
- After selecting the backup source and destination, click Back up Now to start backing up immediately.
- You can also click Back up Later to perform the task later and then restart it in the Manage
When all steps are finished, you have successfully backed up the computer. If you encounter the issue of driver power state failure again or come across some other problems, you can directly use this system image to restore your computer to a normal state.
Bottom Line
In conclusion, this post has introduced 6 solutions to the issue of driver power state failure Windows 10/8/7. If you have the same problem, you can try these solutions.
This post also suggests creating a system image with MiniTool ShadowMaker after you have solved the problem.
And if you have any problem with MiniTool program, please feel free to contact us via the email [email protected] and we will reply to you as soon as possible.
Summary :
Is your Windows Defender not turning on? Are you looking for full solutions to get rid of this issue? This post will show you how to repair Windows Defender in Windows 10/8/7 so your PC can be protected from viruses. We will also introduce a professional backup software for PC protection.
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Windows Defender Will Not Turn on Windows 10/8/7
Windows Defender (also called Windows Defender Security Center in Windows 10 1703 or later), a fully integrated part of Windows, is an antivirus program. It can offer real-time protection from various threats like spyware, malware, and viruses to your PC. Once it scans and finds potential threats, this program will stop them.
However, many users have reported that their Windows Defender can't be turned on for virus defense in Windows 10/8/7 when they click on the Turn on button.
One Windows 10 user from tomsguide said:
'A few days back I turned it off completely using group edit policy, but now when I try to put on the real-time protection slider, it asks for permission but then nothing happens...'tomsguide
In addition to the case when Windows Defender could be turned off by group policy, some users said Windows Defender gets an unexpected error and cannot be opened or Windows Defender can't open after uninstalling Avast, Bitdefender, McAfee, AVG.
To put it simply, this issue is possibly caused by the installation of third-party antivirus software, a corrupted registry, software conflicts, and so on. For Windows 7, Windows 8 and Windows 10 users, it is fairly common.
Well then, what to do if you are troubled by Windows Defender not working? How to turn on Windows Defender in Windows 8/10/7 successfully? Take it easy! Get the full solutions from the following part to help you out.
Further tip: If your Windows Defender can work normally, but you have a need to disable it, you can watch the following video.
How to Repair Windows Defender Windows 10/8/7
Method 1: Uninstall Third-party Antivirus Software
If you have installed any third-party software on your computer, Windows operating system will automatically detect it and turn itself down. Thus, the first thing you can try is to disable your other security programs.
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How to disable (stop or close), remove (or uninstall) Avast antivirus in Windows and Mac? This post shows you multiple methods for this work.
If that is not working, the best way is to completely remove them. To do this, go to Control Panel > Programs and Features in Windows 7 or navigate to Control Panel > Programs > Uninstall a program in Windows 10/8.
Then find your third-party program, right-click on it and choose Uninstall or Uninstall/Change to remove it to get rid of Windows Defender not turning on issue.
Alternatively, you can use a professional removal tool to uninstall your security applications, remove all files (including undetected files) and registry entries associated with the application, which may also prevent you from running Windows Defender.
Finally, restart your PC and try launching Windows Defender again to see if it can be turned on for virus, spyware and other threats protection.
Method 2: Restart the Security Center Service
In order to let Windows Defender work properly, you need to enable certain services. If those services aren't running well, the issue of Windows Defender not turning on will happen on Windows 10/8/7. So, follow the instructions to restart necessary services, and here we will show you enabling Security Center service.
Step 1: Click Win and R keys on your keyboard to launch the Run box.
Step 2: Input services.msc in the box and press Enter.
Step 3: In the Services interface, search for Security Center service and right-click on it to choose the Restart option.
Once this service is restarted, you can check if the issue -Windows Defender not starting is solved.
Method 3: Run an SFC Scan
If Windows Defender will not turn on Windows 10/8/7 and runs into an unexpected error, perhaps there is something wrong with your system files. So, you can perform an SFC scan.
SFC, known as System File Checker, is a utility in Windows that allows you to scan for corruptions in Windows system files and restore them. How to scan your system files and repair missing or corrupted files? Here are the steps.
Step 1: Type cmd in the search box of Windows 7/8/10 and right-click on it to run this program as administrator.
Step 2: In the Command Prompt window, type sfc /scannow command line and press the Enter key.
Then, this utility will begin a system scan. This process will take some time, so please wait patiently until verification reaches 100%.
Step 3: Later, exit the CMD window to check whether Windows Defender unexpected error is resolved.
In order to fix the issue of Windows Defender Antivirus not turning on, you can try using DISM scan instead. To do that, follow the guide:
Step 1: Run Command Prompt as administrator.
Step 2: In the pop-up window, enter DISM /Online /Cleanup-Image /RestoreHealth and hit Enter to execute this command line. Similarly, this scan will take some time, just wait and don't interrupt it.
Method 4: Install the Latest Update
An outdated Windows operating system may cause the issue of Windows Defender not turning on. Some users reported that they had been able to fix the issue simply by installing the latest Windows update - latest signature updates are necessary for Windows Defender to keep your PC secure.
You must be eager to know the way to recover lost files after Windows update if you find needed files disappear after the update is finished.
Back up Files or Windows OS before an Update
To back up crucial files, you can choose the professional backup software for Windows 10/8/7, MiniTool ShadowMaker since it allows you to back up files into an image and sync files or folders to other safe locations. Now, get MiniTool ShadowMaker Trial Edition on your computer and then install it for file backup.
Step 1: Run MiniTool ShadowMaker Trial.
Step 2: In the Backup page, go to Source > Folders and Files to choose important files that you want to back up.
Then go to Destination to choose the place where you need to save the backup. Here an external hard drive, USB drive, NAS, etc. can be available.
Step 3: After finishing all the selections, click Back up Now button to start the backup operation.
In addition, you can take full advantage of the Sync feature to synchronize your important files. This tutorial - How to Sync Folders Windows 10 to External Drive? 3 Tools Are Here shows you detailed operating steps.
Upgrade Windows OS
Now, it is time for you to install the latest Windows operating system. How to perform a Windows update? Here is the guide:
Step 1: In Windows 7, go to Control Panel and click Windows Update. In Windows 8, go to Control Panel > System and Security > Windows Update. In Windows 10, navigate to Settings > Update & security to enter the Windows Update interface.
Step 2: Click Check for updates. If there are available updates, install them and restart your PC.
After completing Windows updates, the problem of Windows Defender not turning on maybe disappeared.
Method 5: Change Your Group Policy
Sometimes, Windows Defender won't turn on in Windows 10/8/7 because it is turned off by your group policy. This can be a problem but you are able to fix it simply by changing the group policy.
To do that, follow the step-by-step guide:
Step 1: Open the Run dialog by clicking Win + R keys on the keyboard.
Step 2: Type gpedit.msc and press the OK button.
Step 3: In the Local Group Policy Editor interface, go to the left pane and navigate to Computer Configuration > Administrative Template > Windows Components > Windows Defender Antivirus.
Step 4: In the right pane, double-click on Turn off Windows Defender Antivirus.
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Step 5: In the pop-up window, choose Not Configured, click the Apply and OK button.
After these changes are brought into effect, the issue of Windows Defender not working due to the group policy being turned off should be solved, and you can run it to protect your PC.
Method 6: Modify Windows Registry
When you fail to enable Windows Defender in Windows 10/8/7, the problem may be related to your registry. Then, you can change it to fix this issue.
Step 1: Input regedit in the text box of the Run window.
Step 2: In the Registry Editor interface, go to
HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows Defender
Step 3: Find DisableAntiSpyware key. If this key is not listed, please right-click the blank, choose New and DWORD (32-bit) Value to create it.
Step 4: Right-click on it and set its Value data to 0.
After you have changed Windows Defender using Registry Editor, you can check if Windows Defender Antivirus not turning on is solved.
Method 7: Perform a Clean Boot
If you start the Windows system in normal start-up operation, there might be many third-party applications running in the background. These applications can cause software conflicts and interfere with Windows. As a result, you can't turn on Windows Defender in Windows 10/8/7.
To Repair Windows Defender issue, you can perform a Clean Boot. This method is quite simple and you can do by following these instructions:
Step 1: Launch the Run window, and enter msconfig in the textbox.
Step 2: In the System Configuration interface, go to the General tab, choose Selective startup and uncheck Load startup items.
Step 3: Under the Services tab, tick Hide all Microsoft services and click Disable all.
Step 4: Click the OK and Restart button to reboot your PC.
Now, all of the possible ways to fix Windows Defender not turning on have been shown to you. Just try them one by one to repair Windows Defender in Windows 10/8/7. If you think these ways are helpful, you can also share them on Twitter to let more people know.
Use MiniTool ShadowMaker to Protect Your PC from Viruses and Other Threats
In order to protect your computer against spyware, ransomware, adware, viruses and other threats, you can try another way that is to use MiniTool ShadowMaker to back up your computer.
MiniTool ShadowMaker, one of the best backup software for Windows 10/8/7 users, is really worth recommending. In addition to backing up your important files (as mentioned above), it can help you easily and effectively back up your Windows operating system, disk, and partition. If your system ever goes wrong, you can use the backup to restore it to a normal state.
Additionally, it supports disk cloning, which helps you transfer all the content on a disk to another for the entire disk data backup. For system disk cloning, the cloned drive can be used to boot the PC in case of a system crash.
Are you interested in this backup software? Now get MiniTool ShadowMaker Trial Edition (30 days trial) from the following button.
Step 1: Run this free backup software, continue to use the Trial Edition and choose the local backup mode.
Step 2: After entering the Backup page, you can see this program will back up your Windows system by default since the system partitions and destination path are chosen. Of course, you can click the Source and Destination module to decide what you want to back up and where you need to save the image.
Next, just click Back up Now button to execute the operation in Manage page.
In addition, you can choose the entire system disk to create a hard drive image. Or go to Tools page to use its Clone Disk feature to perform a disk cloning for backup.
Related article:How to Clone a Hard Drive to SSD in Windows 10/8/7?
Bottom Line
Can't turn on Windows Defender Windows 10/8/7? How to turn on Windows Defender in Windows 10/8/7? We have shown you solutions to fix the issue of Windows Defender not turning on; just try them one by one.
To keep your PC safe, you should use the professional and reliable PC backup software, MiniTool ShadowMaker to back up the important files or Windows system automatically.
If you have any other solution to repair Windows Defender or any question related to MiniTool software, please contact us via [email protected] or leave your idea in the comment part below.
Windows Defender Not Turning on FAQ
- Uninstall third-party antivirus software
- Restart the Security Center Service
- Run an SFC scan
- Install the latest update
- Change your group policy
- Modify Windows Registry
- Perform a clean boot