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This tip is about the how to Fix ‘Windows Defender Not Turning On Error’ Issue. So read this free guide, How to Fix ‘Windows Defender Not Turning On Error’ Issue. If you have query related to same article you may contact us.
How to Fix ‘Windows Defender Not Turning On Error’ Issue – Guide
Windows Defender (also called Windows Defender Security Center in Windows 10 1703 or later), a fully integrated part of Windows, is an antivirus program. It can provide real-time protection against various threats such as spyware, malware and viruses to your PC. After scanning and finding potential threats, this program will stop them. However, many users have reported that Windows Defender cannot be activated for virus defense on Windows 10/8/7 when they click the Activate button button.
In addition to the case where Windows Defender can be turned off by group policy, some users have said that Windows Defender gets an unexpected error and cannot be opened or Windows Defender cannot be opened after uninstalling Avast, Bit defender, McAfee, AVG.
Enable real-time protection
It is possible that Windows Defender real-time protection has been disabled on your device. This can make the software look like it’s not opening. It also disables a large part of Defender’s features, which is not recommended. Here are the steps to enable realtime protection in Windows 10.
Temporarily disable your third-party antivirus
Antivirus applications are known to cause problems on computers by blocking applications and services from running properly. You can test whether the antivirus program you are currently using is causing the error by temporarily disabling it.
Restore corrupted system files
Corrupted system files can cause huge problems for your operating system. One of the main causes for Windows Defender not to open is file corruption. You can identify and repair faulty system files through SFC scanning. System File Checker (SFC) is a built-in tool to help you troubleshoot problems in Windows 10. It is able to automatically detect corrupt system files and repair them in their working state. You can use SFC scanning to fix a variety of errors.
Use DISM command to repair system images
The DISM tool allows you to identify and fix corruption issues on your system simply by running commands in the Command Prompt application. It checks the entire system for corruption and automatically tries to restore damaged or missing files.
Restart the Security Center service
In order for Windows Defender to run, you need to enable some services. There is a possibility that the necessary services have been stopped, causing Defender not to start. Using the steps below, you can start these services and ensure they are working correctly in the future.
Enable Windows Defender in Group Policy
There is a possibility that Windows Defender is completely disabled using Group Policy. This could have been done by accident or by another user on the computer. In rare cases, malware can also do this. Fortunately, reactivating Windows Defender is an easy task if you follow these steps.
Final note
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