Oplossing Kan Windows Defender niet inschakelen
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
Zorg ervoor dat u een herstelpunt maakt voor het geval er iets misgaat.
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-toets + X en selecteer vervolgens: Opdrachtprompt (beheerder).
2.Type sfc / scannow en druk op enter.
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.
Methode 3 – Voer een schone start uit
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 druk op Enter.
2.On the system configuration Window, you need to navigate to Tabblad Services where you need to check to Alle Microsoft Services verbergen en klik op de Alle uitschakelen knop.
3. Navigeer naar Startup section en klik op Open Taakbeheer.
4.Here you will locate all startup programs. You need to klik met de rechtermuisknop on each program and onbruikbaar maken all of them one by one.
5.After disabling all startup applications you need to come back to the system configuration window to sla alle wijzigingen op. 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 niet.
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 security Center en klik met de rechtermuisknop on Security Center and choose Herstart optie.
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 nu op Enter.
2.Once you open the registry editor here you need to navigate to:
HKEY_LOCAL_MACHINESOFTWAREBeleidMicrosoftWindows 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.
Opmerking: If you’re facing permission issues then right-click on Windows Defender en selecteer Machtigingen. 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.
Methode 6 - Set Windows Defender Service to Automatic
Opmerking: Als de Windows Defender-service grijs wordt weergegeven in Services Manager, dan volg dit bericht.
1.Druk op Windows-toets + R en typ vervolgens services.msc en druk op Enter.
2. Zoek de volgende services in het venster Services:
Windows Defender Antivirus Network Inspection Service
Windows Defender Antivirus Service
Windows Defender Security Center-service
3. Dubbelklik op elk ervan en zorg ervoor dat hun opstarttype is ingesteld op Automatisch en klik op Start als de services nog niet actief zijn.
4.Klik op Toepassen gevolgd door OK.
5. Start uw pc opnieuw op om de wijzigingen op te slaan en kijk of u kunt Fix Can’t Turn ON Windows Defender issue.
Methode 7 - Stel de juiste datum en tijd in
1.Klik op de datum en tijd op de taakbalk en selecteer vervolgens “Datum- en tijdinstellingen. '
2.In Windows 10, maak “Tijd automatisch instellen' als 'on. '
3. Voor anderen klikt u op “Internettijd” en vinkt u “Automatisch synchroniseren met de internettijdserver. '
4.Selecteer Server “time.windows.com' en klik op bijwerken en 'OK'. U hoeft de update niet te voltooien. Klik gewoon 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 installeer Ccleaner & Malwarebytes.
2.Voer Malwarebytes uit en laat het uw systeem scannen op schadelijke bestanden.
3.Als er malware wordt gevonden, wordt deze automatisch verwijderd.
4. Ren nu Ccleaner en in het gedeelte 'Opschoner', onder het tabblad Windows, raden we aan de volgende selecties aan te vinken die moeten worden opgeschoond:
5. Zodra u er zeker van bent dat de juiste punten zijn aangevinkt, klikt u eenvoudigweg Voer schoner uit, en laat CCleaner zijn gang gaan.
6. Om uw systeem verder op te schonen, selecteert u het tabblad Register en zorgt u ervoor dat het volgende is aangevinkt:
7. Selecteer Scannen op probleem, laat CCleaner scannen en klik vervolgens op Los geselecteerde problemen op.
8. Wanneer CCleaner vraagt “Wilt u back-upwijzigingen in het register?” selecteer Ja.
9. Zodra uw back-up is voltooid, selecteert u Alle geselecteerde problemen oplossen.
10.Start uw pc opnieuw op om de wijzigingen op te slaan en kijk of dit lukt Fix Can’t Turn ON Windows Defender issue.
Method 9 – Update Windows Defender
1.Druk op Windows-toets + X en selecteer vervolgens: Opdrachtprompt (beheerder).
2. Typ de volgende opdracht in cmd en druk na elke opdracht op Enter:
“%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-toets + I om Instellingen te openen en klik vervolgens op “Update en beveiliging" icoon.
2. Zorg er nu voor dat u in het linkerdeelvenster selecteert Windows Update.
3.Klik vervolgens op “Controleren op updates' en laat Windows alle openstaande updates downloaden en installeren.
Aanbevolen:
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.
