Deisigh Ní Féidir Cas ar 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

Bí cinnte pointe athchóirithe a chruthú ar eagla go n-imíonn rud éigin mícheart.

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 roghnaigh ansin Pras Ordú (Riarachán).

2.Cineál  Craobh Sinsear / scannow agus buail isteach.

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 / Glantacháin-Íomhá / Athshlánú Sláinte

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.

Modh 3 - Déan Tosaithe Glan

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 agus bhuail Iontráil.

2.On the system configuration Window, you need to navigate to Cluaisín seirbhísí where you need to check to Folaigh gach Seirbhís Microsoft agus cliceáil ar an Díchumasaigh Gach cnaipe.

3.Navigate go Startup section agus cliceáil ar Bainisteoir Tasc Oscailte.

4.Here you will locate all startup programs. You need to right-click on each program and díchumasaigh 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. Cliceáil ar OK.

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

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 agus bhuail Iontráil

2.Here you need to search for Ionad Slándála agus ansin right-click on Security Center and choose Atosaigh rogha.

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. Anois brúigh Iontráil.

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

Cosantóir HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows

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.

Nóta: If you’re facing permission issues then right-click on Windows Defender agus roghnaigh Ceadanna. 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.

Modh 6 - Set Windows Defender Service to Automatic

Nóta: Má tá seirbhís Windows Defender liath i mBainisteoir Seirbhísí ansin lean an post seo.

1.Press Windows Key + R cineál ansin services.msc agus bhuail Iontráil.

2.Faigh na seirbhísí seo a leanas i bhfuinneog na Seirbhísí:

Seirbhís Cigireachta Líonra Antivirus Windows Defender
Seirbhís Antivirus Windows Defender
Seirbhís Lárionad Slándála Windows Defender

3.Double-cliceáil ar gach ceann acu agus déan cinnte go bhfuil a gcineál Tosaithe socraithe go Uathoibríoch agus cliceáil Tosaigh mura bhfuil na seirbhísí ar siúl cheana féin.

4.Cliceáil Iarratas a leanúint ag OK.

5.Atosaigh do ríomhaire chun athruithe a shábháil agus féach an bhfuil tú in ann Fix Can’t Turn ON Windows Defender issue.

Modh 7 - Set Correct Date & Time

1. Cliceáil ar an dáta agus am ar an tascbharra agus ansin roghnaigh “Socruithe dáta agus ama. "

2.If ar Windows 10, déan “Socraigh Am go huathoibríoch"Chun"on. "

3.I gcás daoine eile, cliceáil ar “Internet Time” agus cuir tic ar “Sioncrónaigh go huathoibríoch leis an bhfreastalaí ama Idirlín. "

4.Roghnaigh Freastalaí “am.windows.com” agus cliceáil ar nuashonrú agus “OK”. Ní gá duit an nuashonrú a chríochnú. Just a cliceáil 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 agus a shuiteáil CCleaner & Malwarebytes.

2.Rith Malwarebytes agus lig dó do chóras a scanadh le haghaidh comhad díobhálach.

3.Má aimsítear malware bainfidh sé go huathoibríoch iad.

4.Now rith CCleaner agus sa rannán “Glantóir”, faoin gcluaisín Windows, molaimid na roghanna seo a leanas a sheiceáil le glanadh:

5.Nuair a bheidh na pointí cuí seiceáilte agat, níl le déanamh ach cliceáil Rith Glantóir, agus lig do CCleaner a chúrsa a rith.

6.Chun do chóras a ghlanadh a thuilleadh roghnaigh cluaisín na Clárlainne agus cinntigh go bhfuil na cinn seo a leanas seiceáilte:

7.Roghnaigh Scan le haghaidh Eisiúint agus lig do CCleaner scanadh, ansin cliceáil Deisigh Saincheisteanna Roghnaithe.

8.Nuair a fhiafraíonn CCleaner “Ar mhaith leat athruithe cúltaca ar an gclárlann?” roghnaigh Tá.

9.Nuair a bheidh do chúltaca críochnaithe, roghnaigh Deisigh Gach Saincheist Roghnaithe.

10.Restart do ríomhaire chun athruithe a shábháil agus a fheiceáil má tá tú in ann Fix Can’t Turn ON Windows Defender issue.

Method 9 – Update Windows Defender

1.Press Windows Key + X roghnaigh ansin Command Prompt (Riarachán).

2.Clóscríobh an t-ordú seo a leanas isteach i cmd agus buail Enter tar éis gach ceann:

“%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.Brúigh Windows Key + I chun Socruithe a oscailt agus cliceáil ar “Nuashonrú & Slándáil"Deilbhín.

2.Now as an phána fhuinneog ar chlé a dhéanamh cinnte a roghnú Windows Update.

3.Next, cliceáil ar “Seiceáil do nuashonruithe” cnaipe agus lig do Windows aon nuashonruithe atá ar feitheamh a íoslódáil agus a shuiteáil.

Molta:

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.