Fix kin Windows Defender net ynskeakelje

Fix Unable to turn on Windows Defender: Windows Defender is an inbuilt antimalware tool that detects virus and malware on your system. However, there are some instances when users experience that they are unable to turn on Windows Defender in Windows. What could be the reasons behind this problem? There are many users who explored that installing any third party antimalware software cause this problem.

Also, if you go to Settings > Update & Security > Windows Defender then you will see that the Real-time protection in Windows Defender is turned on but it’s greyed out and also everything else is turned off and you can’t do anything about these settings. Sometimes the main issue is that if you have installed a 3rd party Antivirus service then Windows Defender will shut itself off automatically. No matter what reasons are behind this problem, we will walk you through the methods to solve this problem.

Why can’t I turn on my Windows Defender?

One thing we need to understand that Windows Defender provides complete protection to our system. Therefore, not able to turn on this feature could be a serious problem. There are many reasons for you not being able to turn on Windows Defender in Windows 10 such as third-party Antivirus might be interfering, Windows Defender is turned off by group policy, incorrect date/time issue, etc. Anyway, without wasting any time let’s see How to fix the underlying cause of this issue using the below-listed troubleshooting guide.

Fix Unable to turn on Windows Defender in Windows 10

Soargje derfoar dat jo in herstelpunt meitsje foar it gefal dat der wat mis giet.

Method 1 – Uninstall any third-party Antivirus software

One of the most common causes of Windows Defender not working is third-party antivirus software. Windows Defender automatically shuts itself down once it detects any third party anti-malware software installed on your system. Therefore, you need to first start uninstallation any third party antimalware software. Moreover, you need to make sure that uninstallation is done properly all residue files of that software otherwise it will keep creating a problem for Windows Defender to get started. You can use some uninstaller software that will remove all remnants of your previous antivirus. Once the installations finished, you need to restart your system.

Method 2 – Run System File Checker (SFC)

Another method that you can opt for is system file diagnosis and repair. You can use command prompt tool to check whether Windows Defender files are corrupted. Moreover, this tool repairs all corrupted files.

1.Druk op Windows Key + X dan selektearje Kommando-prompt (Admin).

2.Type  sfc / scannow en gean yn.

3.This process takes some time so be patient while running this command.

4.In case sfc command did not resolve the problems, you can use another command. Just type the below-mentioned command and hit Enter:

DISM / Online / Cleanup-Image / RestoreHealth

5.It will scan thoroughly and repair corrupted files.

6.After completing these steps, check if you’re able to fix Can’t Turn ON Windows Defender issue or not.

Metoade 3 - Clean Boot útfiere

Sometimes there are some third party applications cause this problem, you can easily find those ones by performing the clean boot function.

1.Press Windows + R and type msconfig en klik op Enter.

2.On the system configuration Window, you need to navigate to Ljepper Tsjinsten where you need to check to Ferbergje alle Microsoft Tsjinsten en klikje op 'e Alles útskeakelje knop.

3. Gean nei Startup section en klikje op Iepenje taakbehearder.

4.Here you will locate all startup programs. You need to rjochts klikke on each program and Disable all of them one by one.

5.After disabling all startup applications you need to come back to the system configuration window to save all the changes. Klik op OK.

6.You need to reboot your system and check if you’re able to Fix Can’t Turn ON Windows Defender issue of net.

To zero in on the issue you need to perform clean boot using this guide and find the problematic program.

Method 4 – Restart Security Center Service

Another method to get your Windows Defender problem solved is restarting security center service. You need to activate and ensure that certain services are enabled.

1.Press Windows + R and type services.msc en druk op Enter

2.Here you need to search for Befeiligingssintrum en doe rjochts klikke on Security Center and choose Restart opsje.

3.Now simply restart your device and check if the problem is solved or not.

Method 5 – Modify your registry

If you are still finding the problem in turning on the Windows Defender, you can opt for this method. You just need to modify the registry but before doing so make sure to create a backup of your Registry.

1.Press Windows + R and type regedit. Druk no op Enter.

2.Once you open the registry editor here you need to navigate to:

HKEY_LOCAL_MACHINESOFTWAREBeliedingenMicrosoftWindows Defender

3.Select Windows Defender then in the right window pane find DisableAntiSpyware DWORD. Now double click this file.

4.Set the value data to 0 and click OK to save the settings.

Noat: If you’re facing permission issues then right-click on Windows Defender en selektearje Tastimming. Follow this guide in order to take full control or ownership of the above registry key and again set the value to 0.

5.Most probably, after doing this step, your Windows Defender will start working on your system properly without any problem.

Metoade 6 - Set Windows Defender Service to Automatic

Noat: As Windows Defender-tsjinst is grize yn Services Manager dan folgje dizze post.

1.Druk op Windows Key + R en typ dan services.msc en klik op Enter.

2.Fyn de folgjende tsjinsten yn it finster Tsjinsten:

Windows Defender Antivirus Network Inspection Service
Windows Defender Antivirus Service
Windows Defender Security Center Service

3.Dûbelklikke op elk fan har en soargje derfoar dat har Startup-type is ynsteld op Automatysk en klikje op Start as de tsjinsten net al rinne.

4.Klikje Tapasse folge troch OK.

5. Reboot jo PC om wizigingen te bewarjen en te sjen oft jo dat kinne Fix Can’t Turn ON Windows Defender issue.

Metoade 7 - Set Correct Date & Time

1.Click op it Datum en tiid op 'e taakbalke en selektearje dan "Datum en tiid ynstellings. "

2. As op Windows 10, meitsje "Stel tiid automatysk yn"Nei"on. "

3.Foar oaren, klikje op "Ynternettiid" en markearje op "Syngronisearje automatysk mei ynternettiidtsjinner. "

4.Selektearje tsjinner "time.windows.com” en klik op update en “OK”. Jo hoege gjin update te foltôgjen. Klik gewoan op OK.

Again check if you are able to Fix Windows Defender Does Not Start issue or not, if not then continue with the next method.

Method 8 – Run CCleaner and Malwarebytes

1.Download en ynstallearje CCleaner & Malwarebytes.

2.Malwarebytes útfiere en lit it jo systeem scannen foar skealike bestannen.

3.As malware fûn wurdt sil se automatysk fuortsmite.

4. No rinne CCleaner en yn 'e seksje "Cleaner", ûnder it ljepblêd Windows, stelle wy foar om de folgjende seleksjes te kontrolearjen dy't moatte wurde skjinmakke:

5. Sadree't jo hawwe makke wis de goede punten wurde kontrolearre, gewoan klik Run Cleaner, en lit CCleaner syn kursus rinne.

6.Om jo systeem fierder te skjin te meitsjen, selektearje it ljepblêd Registry en soargje derfoar dat de folgjende wurde kontrolearre:

7.Selektearje Scan for Issue en tastean CCleaner te scannen, klik dan Fix selekteare problemen.

8.As CCleaner freget "Wolle jo reservekopy feroarings yn it register?" selektearje Ja.

9.Ienris jo reservekopy is foltôge, selektearje Fix All Selected Issues.

10.Start jo PC op 'e nij om wizigingen te bewarjen en te sjen oft jo dat kinne Fix Can’t Turn ON Windows Defender issue.

Method 9 – Update Windows Defender

1.Druk op Windows Key + X dan selektearje Kommando-prompt (Admin).

2.Typ it folgjende kommando yn cmd en druk op Enter nei elk ien:

“%PROGRAMFILES%Windows DefenderMPCMDRUN.exe” -RemoveDefinitions -All

“%PROGRAMFILES%Windows DefenderMPCMDRUN.exe” -SignatureUpdate

3.Once the command finish processing, close cmd and reboot your PC.

Method 10 – Update Windows 10

1. Druk op Windows Key + I om Ynstellings te iepenjen en klikje dan op "Update & befeiliging”Byldkaike.

2.Now út it linker finster finster soargje derfoar te selektearjen Windows Update.

3. Klikje dan op "Kontrolearje op fernijings” knop en lit Windows alle oanhâldende updates downloade en ynstallearje.

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Hopefully, above mentioned all methods will help you to Fix Unable to turn on Windows Defender in Windows 10 Issue. However, you need to understand that these methods should be followed systematically. In case you have more questions related to this problem leave your comments below.