Fix Le Mafai ona ON 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

Ia mautinoa e fai se mea e toe fa'afo'isia ai ina ne'i iai se mea e tupu.

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 ona filifili lea Umiaina o Poloaiga (Taitai).

2. Ituaiga  sfc / scannow ma lavea ulufale.

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:

Tetele / Initaneti / Faamamaina-Ata / Toe Faʻafoʻi Lelei

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.

Metotia 3 – Fa'atino Fua Mama

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 ma lavea Ulufale.

2.On the system configuration Window, you need to navigate to Auaunaga tab where you need to check to Natia uma Microsoft Services ma kiliki i le Faʻaleaogaina Uma button.

3. Faʻavasega i Startup section ma kiliki Tatala Pule Faʻatonu.

4.Here you will locate all startup programs. You need to kiliki-saʻo on each program and faamuta 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. Kiliki Afaina.

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

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 ma kiliki Enter

2.Here you need to search for Nofoaga saogalemu ae te'i ane kiliki-saʻo on Security Center and choose Toe amata filifiliga.

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 faʻatonutonu. Oomi nei 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.

Manatua: If you’re facing permission issues then right-click on Faiga Puipui Windows ma filifili Faʻatagaina. 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.

Faiga 6 - Set Windows Defender Service to Automatic

Manatua: Afai o le Windows Defender service ua efuefu i le Services Manager ona mulimuli i lenei pou.

1.Press Windows Key + R ona lolomi lea services.msc ma lavea Ulufale.

2. Su'e auaunaga nei i le faamalama o Auaunaga:

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

3. Fa'alua-kiliki i luga oi latou ta'ito'atasi ma ia mautinoa o lo'o fa'atulaga a latou ituaiga Startup automatika ma kiliki Amata pe afai e leʻi faʻagaoioia auaunaga.

4. Kiliki Talosaga sosoo ma OK.

5. Toe fa'afouina lau PC e fa'asaoina suiga ma va'ai pe e te mafaia Fix Can’t Turn ON Windows Defender issue.

Faiga 7 - Set Correct Date & Time

1. kiliki i le aso ma le taimi i luga o le taskbar ona filifili lea "Aso ma taimi faʻasologa. "

2. Afai i luga o le Windows 10, fai le "Seti Taimi Otometi"Ia"on. "

3. Mo isi, kiliki i luga o le "Taimi Initaneti" ma fa'ailoga fa'ailoga ile "Fa'atasi fa'atasi ma le 'upega tafa'ilagi taimi. "

4. Filifili Server “taimi.windows.com” ma kiliki le faafou ma le “Ua lelei”. E te le mana'omia le fa'aumaina o fa'afouga. Na'o le kiliki 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 ma faʻapipiʻi CCleaner & Malwarebytes.

2.Faʻaauau Malwarebytes ma fa'ataga e su'e lau faiga mo faila leaga.

3.Afai e maua malware e otometi lava ona aveesea.

4.Now tamoe CCleaner ma i le vaega "Cleaner", i lalo o le Windows tab, matou te fautuaina le siakiina o filifiliga nei e faʻamama:

5. A mae'a ona e fa'amautinoa ua siaki mea sa'o, na'o le kiliki Tamomoe Cleaner, ma tuʻu CCleaner e faʻatautaia lona ala.

6. Ina ia faʻamama lau faʻaogaina atili filifili le Resitala lisi ma faʻamautinoa e siaki mea nei:

7. Filifili Va'ai mo Fa'amatalaga ma fa'ataga CCleaner e fa'ata'ita'i, ona kiliki lea Fa'asa'o Fa'afitauli Filifilia.

8. Pe a fesili CCleaner “Ete mana'o i suiga faaleoleo ile resitala?” filifili Ioe.

9. Ina ua uma lau faaleoleo, filifili Fix All Filifilia Mataupu.

10. Toe amata lau PC e teu suiga ma vaai pe e te mafaia Fix Can’t Turn ON Windows Defender issue.

Method 9 – Update Windows Defender

1. Press Windows Key + X ona filifili lea Umiaina o Poloaiga (Taitai).

2.Type le poloaiga lenei i le cmd ma kiliki Enter pe a uma ia mea taitasi:

“%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. Oomi le Windows Key + I e tatala Seti ona kiliki lea i le "Faʻafouga & Puipuiga”Aikona.

2.Now mai le itu tauagavale faamalama pane ia mautinoa e filifili Windows Update.

3. Sosoo ai, kiliki i le "Siaki mo faʻamatalaga” fa'amau ma tu'u le Windows e sii mai ma fa'apipi'i so'o se fa'afouga o lo'o fa'atali.

fautuaina:

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.