Fix Kan ikke slå PÅ Windows Defender
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
Sørg for å opprette et gjenopprettingspunkt i tilfelle noe går galt.
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. Trykk på Windows-tasten + X og velg deretter Ledetekst (Admin).
2.Type sfc / scannow og trykk 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.
Metode 3 – Utfør 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 og trykk Enter.
2.On the system configuration Window, you need to navigate to Tjenester-fanen where you need to check to Skjul alle Microsoft-tjenester og klikk på Deaktiver alle knapp.
3.Navigate to Startup section og klikk på Åpne oppgavebehandling.
4.Here you will locate all startup programs. You need to høyreklikk on each program and Deaktiver 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. Klikk på OK.
6.You need to reboot your system and check if you’re able to Fix Can’t Turn ON Windows Defender issue eller ikke.
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 og trykk Enter
2.Here you need to search for Sikkerhetssenter og deretter høyreklikk on Security Center and choose Restart alternativet.
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. Trykk nå Enter.
2.Once you open the registry editor here you need to navigate to:
HKEY_LOCAL_MACHINESOFTWAREPolicyerMicrosoftWindows 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.
OBS: If you’re facing permission issues then right-click on Windows Defender og velg Tillatelser. 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.
Metode 6 - Set Windows Defender Service to Automatic
OBS: Hvis Windows Defender-tjenesten er nedtonet i Services Manager da følg dette innlegget.
1. Trykk på Windows-tasten + R og skriv deretter services.msc og trykk Enter.
2.Finn følgende tjenester i Tjenester-vinduet:
Windows Defender Antivirus Network Inspection Service
Windows Defender Antivirus-tjeneste
Windows Defender Security Center-tjeneste
3. Dobbeltklikk på hver av dem og kontroller at oppstartstypen er satt til Automatisk og klikk Start hvis tjenestene ikke allerede kjører.
4. Klikk på Bruk etterfulgt av OK.
5. Start PC-en på nytt for å lagre endringer og se om du er i stand til det Fix Can’t Turn ON Windows Defender issue.
Metode 7 - Still inn riktig dato og klokkeslett
1.Klikk på dato og tid på oppgavelinjen og velg deretter "Innstillinger for dato og klokkeslett».
2.Hvis på Windows 10, gjør "Angi tid automatisk"Til"on».
3. For andre, klikk på "Internetttid" og kryss av for "Automatisk synkronisering med Internett-tidsserver».
4. Velg server "time.windows.com" og klikk oppdater og "OK". Du trenger ikke fullføre oppdateringen. Bare klikk 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.Last ned og installer cCleaner & Malwarebytes.
2.Kjør Malwarebytes og la den skanne systemet for skadelige filer.
3. Hvis skadelig programvare blir funnet, vil den automatisk fjerne dem.
4. Kjør nå cCleaner og i delen "Renere", under Windows-fanen, foreslår vi at du sjekker følgende valg som skal renses:
5. Når du har forsikret deg om at de riktige punktene er sjekket, klikker du bare Kjøre vask, og la CCleaner gå sin gang.
6. For å rense systemet ytterligere velg kategorien Register og sørg for at følgende er merket:
7. Velg Scan for Issue og la CCleaner skanne, og klikk deretter Løs utvalgte problemer.
8. Når CCleaner spør "Ønsker du sikkerhetskopiering av registeret?” velg Ja.
9. Når sikkerhetskopieringen er fullført, velger du Fix All Selected Issues.
10. Start PC-en på nytt for å lagre endringer og se om du er i stand til det Fix Can’t Turn ON Windows Defender issue.
Method 9 – Update Windows Defender
1. Trykk på Windows-tasten + X og velg deretter Kommandoprompt (Admin).
2.Skriv inn følgende kommando i cmd og trykk Enter etter hver kommando:
"%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. Trykk på Windows-tasten + I for å åpne Innstillinger og klikk deretter på "Oppdatering og sikkerhet" ikon.
2. Pass på å velge fra venstre vindusrute Windows Update.
3. Deretter klikker du på "Se etter oppdateringer”-knappen og la Windows laste ned og installere eventuelle ventende oppdateringer.
Anbefalt:
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.
