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How do I fix a corrupted Windows Defender?Īccording to users, sometimes Windows Defender service won't start because of file corruption. You should turn off and uninstall this app before running Windows Defender to avoid any software clashes.
If Windows Defender is turned off, this may be because you have another antivirus app installed on your machine (check Control Panel, System and Security, Security and Maintenance to make sure). Why is my Windows Defender antivirus turned off?
Click on the Restore defaults button and confirm your action by clicking Yes in the confirmation window. Click on the Windows Defender tab and choose the Restore defaults option from the left side panel. Navigate to the Start menu and open the Control Panel. To do that, just follow these steps: Press Windows Key + R and enter gpedit. This can be a problem, but you can fix it simply by changing that group policy. Sometimes Windows Defender won't turn on because it's disabled by your group policy. Under services look from Windows defender service and start the service. Now from the list click on Windows Defender and try to enable it. On right top corner click on View and then choose large items. Press Windows + X, Click on control panel. How do I fix Windows Defender in Windows 10? Scroll to the bottom of the list and select Turn off Windows Defender Antivirus. Select Computer Configuration > Administrative Templates > Windows Components > Windows Defender Antivirus. Using dedicated software solves the failure of the Windows Defender antivirus to turn on in Windows 10. Sometimes, the date and time settings are the reason why Windows Defender won't turn on. If Windows Defender real-time protection won't turn on Windows 10, then you should check its settings.
Why can't I turn on Windows Defender Windows 10? Enabling Windows Defender from Group Policy.Remove existing antivirus and antispyware software.When you encounter these problems, here are some things you can try: How do I fix Windows Defender not opening? How do I fix a corrupted Windows Defender?.Why is my Windows Defender antivirus turned off?.Why is my Windows Defender not working?.How do I fix Windows Defender in Windows 10?.Why can't I turn on Windows Defender Windows 10?.
How do I fix Windows Defender not opening?. Once you restart the required services, check if the problem with Windows Defender is resolved. Right-click on Security Center> click on Restart. In Services, search for Security Center.