Fix Kann Windows Defender net ONËMMEN

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

Vergewëssert Iech e Restauratiounspunkt ze kreéieren just am Fall wou eppes falsch geet.

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.Press Windows Key + X dann wielt Kommando Prompt (Admin).

2.Typ  sfc / scannow a gitt d'Gewier.

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 / Restauréierhéalth

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.

Method 3 - Maacht Clean Boot

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 a gitt Enter.

2.On the system configuration Window, you need to navigate to Servicer Reiter where you need to check to Verstoppen all Microsoft Services a klickt op de Desaktivéiere Alles Knäppchen.

3.Navigéiert op Startup section a klickt op OpenTaskManager.

4.Here you will locate all startup programs. You need to klickt op on each program and auszeschalten 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. Klickt op OK.

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

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 an dréckt Enter

2.Here you need to search for Sécherheetszentrum an dann klickt op on Security Center and choose Neistart Optioun.

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. Elo dréckt Enter.

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

HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows 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.

Opgepasst: If you’re facing permission issues then right-click on Windows Defender a wielt Permissiounen. 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.

Method 6 - Set Windows Defender Service to Automatic

Opgepasst: Wann Windows Defender Service grau ass am Services Manager dann verfollegen dëse Post.

1.Press Windows Key + R dann Typ services.msc a gitt Enter.

2. Fannt déi folgend Servicer an der Servicer Fënster:

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

3.Double-klickt op jidderee vun hinnen a gitt sécher datt hiren Startup-Typ op gesat ass automatesch a klickt Start wann d'Servicer net scho lafen.

4.Click gëllen gefollegt vun OK.

5.Reboot Äre PC fir Ännerungen ze späicheren an ze kucken ob Dir fäeg sidd Fix Can’t Turn ON Windows Defender issue.

Method 7 - Set Correct Date & Time

1.Click op der Datum an Zäit op der Taskbar a wielt dann "Datum an Zäit Astellunge. "

2.Wann op Windows 10, maacht "Set Zäit automatesch"Op"on. "

3.Fir anerer, klickt op "Internet Zäit" a markéiert op "Synchroniséiert automatesch mam Internet Zäitserver. "

4. Wielt Server "Zäit.windows.com" a klickt Update an "OK". Dir braucht keen Update komplett ze maachen. Klickt einfach 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 an installéieren CCleaner & Malwarebytes.

2.Run Malwarebytes a loosst et Äre System fir schiedlech Dateien scannen.

3.If Malware fonnt gëtt se automatesch ewechhuelen.

4. Elo lafen CCleaner an an der Rubrik "Cleaner", ënner der Windows Tab proposéiere mir déi folgend Auswiel ze kontrolléieren fir ze botzen:

5. Wann Dir sécher gemaach hutt datt déi richteg Punkte kontrolléiert sinn, klickt einfach Run Cleaner, a loosst CCleaner seng Course lafen.

6.Fir Äre System weider ze botzen, wielt de Registry Tab a gitt sécher datt déi folgend kontrolléiert ginn:

7.Select Scan for Issue an erlaabt CCleaner ze scannen, da klickt Fix ausgewielten Themen.

8.Wann CCleaner freet "Wëllt Dir Backupsatellit Ännerungen am Registry?" wielt Jo.

9. Wann Äre Backup ofgeschloss ass, wielt Fix All Selected Issues.

10.Restart Äre PC fir Ännerungen ze späicheren a kucken ob Dir fäeg sidd Fix Can’t Turn ON Windows Defender issue.

Method 9 – Update Windows Defender

1.Press Windows Key + X dann wielt Kommando Prompt (Admin).

2.Typ de folgende Kommando an cmd a dréckt Enter no all eenzel:

“%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.Press Windows Key + I fir Astellungen opzemaachen a klickt op "Update & Sécherheet”Ikon.

2.Now aus der lénker Fënster Fënster sécherstellen ze wielen Windows Update.

3.Nächst, klickt op "Iwwerpréift fir Updates” Knäppchen a loosst Windows eroflueden & installéieren all pendend Updates.

recommandéieren:

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.