Chan urrainn dha Fix Windows Defender a thionndadh AIR
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
Dèan cinnteach gun cruthaich thu puing ath-nuadhachaidh dìreach air eagal ‘s gun tèid rudeigin ceàrr.
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 an uair sin tagh Pras a 'Cheannaird (Rianachd).
2.Type sfc / scannow agus buail a-steach.
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.
Dòigh 3 - Dèan Boot 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 Enter.
2.On the system configuration Window, you need to navigate to Tab seirbheisean where you need to check to Falaich a h-uile seirbheis Microsoft agus cliog air Cuir à comas na h-uile putan.
3. Cuir sùil air Startup section agus briog air a ' Manaidsear Gnìomha Fosgailte.
4.Here you will locate all startup programs. You need to deas-cliog on each program and Disable 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 changesS an Iar- Cliog air OK.
6.You need to reboot your system and check if you’re able to Fix Can’t Turn ON Windows Defender issue no nach eil.
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 seirbheisean.msc agus bhuail Enter
2.Here you need to search for Ionad Tèarainteachd agus an uair sin deas-cliog on Security Center and choose Ath-thòisich roghainn.
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 s an Iar-. A-nis brùth Enter.
2.Once you open the registry editor here you need to navigate to:
Dìonadair 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.
Note: If you’re facing permission issues then right-click on Windows Defender agus tagh Ceadan. 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
Note: Ma tha seirbheis Windows Defender air a ghlasadh a-mach ann am Manaidsear Seirbheisean an uairsin lean am post seo.
1.Press Windows Key + R an uairsin dèan seòrsa seirbheisean.msc agus bhuail Enter.
2.Find na seirbheisean a leanas ann an uinneag nan Seirbheisean:
Seirbheis Sgrùdaidh Lìonra Antivirus Windows Defender
Seirbheis Antivirus Windows Defender
Seirbheis Ionad Tèarainteachd Windows Defender
3.Double-cliog air gach aon dhiubh agus dèan cinnteach gu bheil an seòrsa Startup aca air a shuidheachadh gu Fèin-ghluasadach agus cliog Tòisich mura h-eil na seirbheisean a’ ruith mu thràth.
4.Click Apply air a leantainn le OK.
5.Reboot do PC gus atharrachaidhean a shàbhaladh agus faic an urrainn dhut Fix Can’t Turn ON Windows Defender issue.
Modh 7 - Set Correct Date & Time
1. Cliog air a 'phutan ceann-latha agus uair air a’ bhàr-tasg agus an uairsin tagh “Ceann-latha agus àm roghainnean. "
2.If air Windows 10, dèan “Suidhich ùine gu fèin-ghluasadach"Gu"on. "
3.For feadhainn eile, cliog air “Internet Time” agus cuir strìochag air “Internet Time”Sioncronaich gu fèin-ghluasadach le frithealaiche ùine eadar-lìn. "
4.Tagh am frithealaiche “ùine.windows.com” agus cliog air ùrachadh agus “OK”. Chan fheum thu ùrachadh a chrìochnachadh. Dìreach cliog air 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 stàladh CCleaner & Malwarebytes.
2.Ruith Malwarebytes agus leig leis an siostam agad a sganadh airson faidhlichean cronail.
3.If lorgar malware bheir e air falbh iad gu fèin-obrachail.
4.Now ruith CCleaner agus anns an roinn “Glanaiche”, fo tab Windows, tha sinn a ’moladh sgrùdadh a dhèanamh air na taghaidhean a leanas airson an glanadh:
5. Nuair a tha thu air dèanamh cinnteach gu bheil na puingean ceart air an sgrùdadh, dìreach cliog Ruith Glanadair, agus leig le CCleaner a chùrsa a ruith.
6. Gus an siostam agad a ghlanadh tuilleadh tagh taba a’ Chlàraidh agus dèan cinnteach gu bheil na leanas air an sgrùdadh:
7.Select Scan for Issue agus leig le CCleaner sganadh, an uairsin cliog Ceartaich cùisean taghte.
8.Nuair a dh’ iarras CCleaner “A bheil thu ag iarraidh atharraichean cùl-taic air a' chlàr?” tagh Tha.
9.Once do chùl-taic air a chrìochnachadh, tagh Fix All Selected Issues.
10.Restart do PC gus atharrachaidhean a shàbhaladh agus faic an urrainn dhut Fix Can’t Turn ON Windows Defender issue.
Method 9 – Update Windows Defender
1.Press Windows Key + X an uair sin tagh Command Prompt (Rianachd).
2.Type an àithne a leanas a-steach gu cmd agus buail Enter às deidh gach fear:
“%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 gus Settings fhosgladh agus an uairsin cliog air “Ùrachadh & Tèarainteachd”Ìomhaigh.
2.Now bhon phana uinneig air an taobh chlì dèan cinnteach gun tagh thu Ùrachadh Windows.
3.Next, cliog air “Dèan cinnteach airson ùrachaidhean” agus leig le Windows ùrachadh sam bith a tha ri thighinn a luchdachadh sìos agus a stàladh.
Air a mholadh:
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.
