Txhim Kho Tsis Tau Tig 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
Nco ntsoov tsim qhov taw tes rov qab tsuas yog thaum muaj qee yam yuam kev.
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.Nias Windows Key + X ces xaiv Hais kom sai (Admin).
2. Hom sfc / scannow thiab ntaus nkag.
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 / Teeb-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.
Txoj Kev 3 – Ua Khau Khau Ntxuav
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 thiab ntaus nkag.
2.On the system configuration Window, you need to navigate to Kev pabcuam tab where you need to check to Nkaum tag nrho Microsoft Services thiab nyem rau ntawm Xiam Txhua Tus khawm.
3.Nav rau Startup section thiab nias rau Qhib Tus Thawj Tswj Xyuas Haujlwm.
4.Here you will locate all startup programs. You need to right-click on each program and Lov tes taw 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. Nias rau OK.
6.You need to reboot your system and check if you’re able to Fix Can’t Turn ON Windows Defender issue los yog tsis.
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 thiab ntaus Enter
2.Here you need to search for Kev Ruaj Ntseg thiab ces right-click on Security Center and choose Pib dua kev xaiv.
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. Tam sim no nias Enter.
2.Once you open the registry editor here you need to navigate to:
HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows Tus Tiv Thaiv
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.
Nco ntsoov: If you’re facing permission issues then right-click on Qhov Rais Tawm Sab Nraud thiab xaiv Kev Tso Cai. 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.
Txoj Kev 6 - Set Windows Defender Service to Automatic
Nco ntsoov: Yog tias qhov kev pabcuam Windows Defender yog greyed hauv Services Manager ces ua raws li tsab ntawv no.
1.Nias Windows Key + R ces ntaus services.msc thiab ntaus nkag.
2.Nrhiav cov kev pabcuam hauv qab no hauv Cov Kev Pabcuam qhov rai:
Windows Defender Antivirus Network Inspection Service
Windows Defender Antivirus Service
Windows Defender Security Center Service
3.Double-click rau txhua tus ntawm lawv thiab xyuas kom meej tias lawv hom Startup tau teeb tsa Tsis Siv Neeg thiab nyem Start yog tias cov kev pabcuam tseem tsis tau ua haujlwm.
4.Nias Thov ua raws li OK.
5.Reboot koj lub PC kom txuag tau cov kev hloov pauv thiab saib seb koj puas tuaj yeem ua tau Fix Can’t Turn ON Windows Defender issue.
Txoj Kev 7 - Set Correct Date & Time
1.Click rau ntawm hnub tim thiab lub sijhawm ntawm lub taskbar thiab tom qab ntawd xaiv "Hnub thiab sijhawm teem caij. "
2.Yog ntawm Windows 10, ua "Teem sij hawm Automatically"Mus"on. "
3.Rau lwm tus, nyem rau ntawm "Internet Sijhawm" thiab kos cim rau ntawm "Yeej synchronize nrog Internet lub sij hawm neeg rau zaub mov. "
4.Xaiv neeg rau zaub mov "sijhawm.zaj.com"thiab nyem qhov hloov tshiab thiab "OK". Koj tsis tas yuav ua kom tiav qhov hloov tshiab. Nyem 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 thiab nruab CCleaner & Malwarebytes.
2.Khiav Malwarebytes thiab cia nws luam theej duab koj lub cev rau cov ntaub ntawv tsis zoo.
3.Yog tias malware pom nws yuav tshem tawm lawv.
4.Tam sim no khiav CCleaner thiab hauv ntu "Cleaner", nyob rau hauv Windows tab, peb xav kom kuaj xyuas cov kev xaiv hauv qab no kom huv:
5.Thaum koj tau kuaj xyuas cov ntsiab lus kom raug, tsuas yog nyem Khiav Cleaner, thiab cia CCleaner khiav nws txoj kev kawm.
6. Txhawm rau ntxuav koj lub kaw lus ntxiv xaiv qhov Registry tab thiab xyuas kom meej cov hauv qab no raug kuaj:
7.Xaiv Scan rau Qhov Teeb Meem thiab tso cai rau CCleaner luam theej duab, tom qab ntawd nyem Txhim kho cov teeb meem xaiv.
8.Thaum CCleaner nug "Koj puas xav tau kev hloov pauv hloov pauv rau lub npe?” xaiv Yes.
9.Thaum koj thaub qab tau ua tiav, xaiv Kho Txhua Qhov Teeb Meem Xaiv.
10.Restart koj lub PC kom txuag tau cov kev hloov pauv thiab saib seb koj puas tuaj yeem ua tau Fix Can’t Turn ON Windows Defender issue.
Method 9 – Update Windows Defender
1.Nias Windows Key + X ces xaiv Hais kom sai (Admin).
2. Ntaus cov lus txib hauv qab no rau hauv cmd thiab ntaus Enter tom qab txhua tus:
“%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.Nias Windows Key + I kom qhib Chaw ces nyem rau ntawm "Hloov Kho & Ruaj Ntseg”Icon.
2.Tam sim no los ntawm sab laug-tes qhov rais pane nco ntsoov xaiv Qhov Hloov Piav Qhia qhov rais
3.Tom ntej no, nyem rau ntawm "Kos rau cov tshiab” khawm thiab cia Windows rub tawm & nruab ib qho kev hloov tshiab tseem tos.
pom zoo:
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.
