Atgyweiria Methu Troi Windows Defender YMLAEN
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
Gwnewch yn siŵr eich bod chi'n creu pwynt adfer rhag ofn i rywbeth fynd o'i le.
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 yna dewiswch Hysbysiad Gorchymyn (Gweinyddol).
2.Type sfc / scannow a daro i mewn.
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 / Ar-lein / Glanhau-Delwedd / 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.
Dull 3 – Perfformio Cist Glân
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 daro Enter.
2.On the system configuration Window, you need to navigate to Tab gwasanaethau where you need to check to Cuddio holl Wasanaethau Microsoft a chliciwch ar y Analluoga Pawb botwm.
3. Ymwelwch â hi Startup section a chliciwch ar Rheolwr Tasg Agored.
4.Here you will locate all startup programs. You need to dde-glicio on each program and Analluoga 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. Cliciwch ar OK.
6.You need to reboot your system and check if you’re able to Fix Can’t Turn ON Windows Defender issue neu beidio.
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 a tharo Enter
2.Here you need to search for Canolfan Ddiogelwch ac yna dde-glicio on Security Center and choose Ail-ddechrau opsiwn.
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. Nawr pwyswch Enter.
2.Once you open the registry editor here you need to navigate to:
Amddiffynwr 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.
Nodyn: If you’re facing permission issues then right-click on Ffenestri Amddiffynnwr a dewis Caniatadau. 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.
Dull 6 - Set Windows Defender Service to Automatic
Nodyn: Os yw gwasanaeth Windows Defender wedi'i lwydro yn Rheolwr Gwasanaethau yna dilynwch y post hwn.
1.Press Windows Key + R yna teipiwch services.msc a daro Enter.
2.Dod o hyd i'r gwasanaethau canlynol yn y ffenestr Gwasanaethau:
Gwasanaeth Arolygu Rhwydwaith Antivirus Windows Defender
Gwasanaeth Antivirus Windows Defender
Gwasanaeth Canolfan Ddiogelwch Windows Defender
3.Double-cliciwch ar bob un ohonynt a gwnewch yn siŵr bod eu math Startup wedi'i osod i Awtomatig a chliciwch ar Start os nad yw'r gwasanaethau eisoes yn rhedeg.
4.Cliciwch Apply ac yna OK.
5.Ailgychwyn eich cyfrifiadur personol i arbed newidiadau a gweld a ydych chi'n gallu Fix Can’t Turn ON Windows Defender issue.
Dull 7 - Set Correct Date & Time
1.Cliciwch ar y dyddiad ac amser ar y bar tasgau ac yna dewiswch “Gosodiadau dyddiad ac amser. "
2.Os ar Windows 10, gwnewch “Gosod Amser yn Awtomatig"I"on. "
3.Ar gyfer eraill, cliciwch ar “Internet Time” a thiciwch y marc ar “Cydamseru'n awtomatig â gweinydd amser Rhyngrwyd. "
4.Dewis Gweinydd “amser.windows.com” a chliciwch ar y diweddariad a “OK”. Nid oes angen i chi gwblhau diweddariad. Cliciwch 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 a gosod CCleaner & Malwarebytes.
2.Rhedeg Malwarebytes a gadewch iddo sganio'ch system am ffeiliau niweidiol.
3.If malware yn dod o hyd bydd yn cael gwared arnynt yn awtomatig.
4.Now rhedeg CCleaner ac yn yr adran “Glanach”, o dan y tab Windows, rydym yn awgrymu gwirio'r dewisiadau canlynol i'w glanhau:
5. Unwaith y byddwch wedi gwneud yn siŵr bod y pwyntiau cywir yn cael eu gwirio, cliciwch Rhedeg Glanhawr, a gadael i CCleaner redeg ei gwrs.
6.I lanhau'ch system ymhellach dewiswch dab y Gofrestrfa a sicrhau bod y canlynol yn cael eu gwirio:
7.Select Scan for Issue a chaniatáu i CCleaner sganio, yna cliciwch Trwsio Materion Dethol.
8.Pan fydd CCleaner yn gofyn “Ydych chi eisiau newidiadau wrth gefn i'r gofrestrfa?” dewiswch Ydw.
9.Unwaith y bydd eich copi wrth gefn wedi'i gwblhau, dewiswch Atgyweiria Pob Mater a Ddewiswyd.
10.Restart eich cyfrifiadur personol i arbed newidiadau a gweld os ydych yn gallu Fix Can’t Turn ON Windows Defender issue.
Method 9 – Update Windows Defender
1.Press Windows Key + X yna dewiswch Command Prompt (Gweinyddu).
2.Teipiwch y gorchymyn canlynol i mewn i cmd a tharo Enter ar ôl pob un:
“%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 i agor Gosodiadau yna cliciwch ar “Diweddariad a Diogelwch"Eicon.
2.Now o'r cwarel ffenestr chwith gwnewch yn siŵr i ddewis Diweddariad Windows.
3.Nesaf, cliciwch ar “Gwiriwch am ddiweddariadau” botwm a gadewch i Windows lawrlwytho a gosod unrhyw ddiweddariadau sydd ar y gweill.
Argymhellir:
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.
