April 24, 2019

Fix ùn pò micca accende 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.

Fix Can't Turn ON Windows Defender

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

Assicuratevi di creà un puntu di restaurazione solu in casu chì qualcosa va male.

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 poi selezziunà Command Prompt (Admin).

Invito di comando (Admin).

2.Tipu  sfc / scannow e cagiunassi entre.

SFC scan now command prompt

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

DISM restaurà u sistema di salute

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.

Metudu 3 - Eseguite 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 e hit Enter.

msconfig

2.On the system configuration Window, you need to navigate to Insignia di servizii where you need to check to Oculta tutti i servizii Microsoft è cliccà nantu à u Disattivà Tuttu buttone.

ammuccià tutti i servizii Microsoft in a cunfigurazione di u sistema

3. Navigate à Startup section è cliccà nantu Apertura Task Manager.

startup open task manager

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

Fate un clic right nant'à ogni prugramma è Disable tutti unu per unu

5.After disabling all startup applications you need to come back to the system configuration window to save all the changes. Cliccate nant'à OK.

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

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 è cliccate Enter

services.msc windows

2.Here you need to search for Centru di Sicurezza è dopu right-click on Security Center and choose Restart funziunalità.

Right-click on Security center then select Restart

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. Avà appughjà Enter.

Eseguite u cumandamentu regedit

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

HKEY_LOCAL_MACHINESOFTWAREPoliticheMicrosoftWindows Defender

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

Set value of DisableAntiSpyware under Windows Defender to 0 in order to enable it

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

nota: If you’re facing permission issues then right-click on Windows Defender è selezziunate Permessi. 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.

Metudu 6 - Set Windows Defender Service to Automatic

nota: Se u serviziu Windows Defender hè grisatu in u Manager di servizii allora seguitate stu post.

1.Press Windows Key + R poi type services.msc e hit Enter.

servizii windows

2.Truvà i seguenti servizii in a finestra di i servizii:

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

Serviziu antivirus Windows Defender

3.Double-cliccate nant'à ognunu di elli è verificate chì u so tipu Startup hè stallatu à Luca Dirisio è cliccate Start se i servizii ùn sò micca digià in esecuzione.

Assicuratevi chì u tipu iniziatu di Windows Defender Service hè stallatu in Automaticu è cliccate Start

4.Click Apply seguita da OK.

5.Reboot u vostru PC à salvà cambiamenti è vede s'ellu vi sò capaci à Fix Can’t Turn ON Windows Defender issue.

Metudu 7 - Set Correct Date & Time

1.Click u situ a data è l'ora nantu à a barra di attività è dopu selezziunate "Impostazioni di data è ora. "

2.Se in Windows 10, fate "Set Time Automatically"À"on. "

stabilisce l'ora automaticamente in Windows 10

3.Per altri, cliccate nant'à "Internet Time" è tick mark nant'à "Sincronizza automaticamente cù u servitore di tempu Internet. "

Ora è Data

4.Select Server "time.windows.com" è cliccate aghjurnamentu è "OK". Ùn avete bisognu di cumplettà l'aghjurnamentu. Just cliccate 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 è stallà CCleaner & Malwarebytes.

2.Eseguite Malwarebytes è lasciate scansà u vostru sistema per i schedarii dannosi.

3.If malware hè trovu lu vi caccià automaticamente.

4.Avà corre CCleaner è in a sezione "Cleaner", sottu a tabulazione Windows, suggerimu di verificà e seguenti selezioni per esse pulite:

impostazioni di ccleaner cleaner

5.Una volta avete fattu certi i punti propriu sò verificati, simpricimenti cliccate Run Cleaner, è lasciate CCleaner fà u so cursu.

6.Per pulisce u vostru sistema ulteriormente, selezziunate a tabulazione di u Registru è assicuratevi chì i seguenti sò verificati:

pulitore di registri

7.Select Scan for Issue è permette CCleaner à scanning, poi cliccate Fix Issues Selected.

8. Quandu CCleaner dumanda "Vulete cambiamenti di salvezza in u registru?"Selezziunà Iè.

9.Una volta a vostra copia di salvezza hà finitu, sceglie Fix All Issues Selected.

10.Restart u vostru PC à salvà cambiamenti è vede s'ellu vi sò capaci à Fix Can’t Turn ON Windows Defender issue.

Method 9 – Update Windows Defender

1.Press Windows Key + X poi selezziunà Invito di comando (Admin).

prompt di cumanda cù diritti di amministratore

2.Type u cumandimu seguitu in cmd è cliccate Enter dopu à ognunu:

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

“%PROGRAMFILES%Windows DefenderMPCMDRUN.exe” -SignatureUpdate

Use the command prompt to update Windows Defender

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

Method 10 – Update Windows 10

1.Press Key Windows + I per apre u Settings è cliccate nant'à "Actualizazione è Sicurezza"Icona.

Press Key Windows + I per apre i paràmetri, dopu cliccate nantu à l'icona Update & security

2.Now da u riquadro finestra manca-manu assicuratevi di sceglie Windows Update.

3.Next, cliccate nant'à "Verificate per aghjurnà” è lasciate Windows scaricate è installate qualsiasi aghjurnamenti pendenti.

Verificate l'aghjurnamenti di Windows

ricumandatu:

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.