GG Tutor - Windows Defender or another name for Windows Security is software that functions to protect the Windows operating system and was developed by Microsoft.
Sometimes, Windows Defender encounters a problem where it fails to function, so Windows Defender cannot be opened on Windows 11 OS.
Windows Defender usually fails to function when there is a pop up error containing " Windows Defender has been turned off and isn't monitoring your computer" or " Windows Defender is turned off by group policy".
Following are the causes and how to overcome Windows Defender on a laptop/PC.
Causes Windows Defender Cannot Open in Windows 11
There are several reasons why Windows Defender won't open and fails to work..
.. Factors that influence this include clashes with services, system problems, and malware or virus attacks on laptops/PCs.
A more detailed explanation is explained in the points below.
1. Crash on Service
The main cause of Windows Defender problems is that there are system services that don't run or crash.
Crashes on this system can be marked with the statement " not responding" in several programs..
.. So, it will have an impact on other programs that are currently running.
2. Problematic System
If the Windows 11 operating system on your laptop/PC fails to function, then the possible cause is in the components inside which have several problems.
One of them is Windows Defender..
.. Considering that the system affects the performance of all programs and applications, this naturally occurs on the user's laptop/PC.
3. Malware And Virus Attacks
Malware or viruses are capable of deleting files that are on the operating system on laptop/PC devices..
.. Thus, some files will be problematic or corrupted.
4. Troubled Antivirus
Another factor that causes Windows Defender to not open is an antivirus application that has the potential to be dangerous on laptop/PC devices.
Moreover, if the user downloads it from an unknown source..
.. It could be that the application is in full control of your current device.
Therefore, be careful when installing antivirus applications from third parties and if you download these applications, make sure the application is clear from the source.
How to Overcome Windows Defender Cannot be Opened
There is a way to overcome Windows Defender can't be opened in Windows 11..
.. This method can be done for Windows 10 users with a few adjustments regarding the steps used.
The following is an explanation of the steps;
1. Restart the Laptop/PC Device
The first and easy way to do if there is a problem with Windows Defender not being able to open is to restart your laptop/PC device.
Sounds simple, but problems with Windows can often be resolved simply by reloading the device.
But this method can be done if the problem is caused by a system that is not running or crashes.
If after reloading the device and there are no changes, then try to do the next method.
2. Uninstall the Antivirus Application
As explained, Windows Defender on Windows 11 cannot be opened because there is a problematic antivirus application.
This could happen because the source of the antivirus application used is unclear and it is not an official antivirus application.
Users can uninstall the application by means of;
- Click the Start menu » then select the Settings menu » and select the Apps option.
- Find and select the App & Features tab.
- Search by scrolling down, and select the antivirus application to be uninstalled.
- Click Uninstall in the corner.
- After that, confirm the removal of the application by clicking Uninstall again.
- Follow the antivirus application uninstall process until it's finished.
- Finished! The Anti-virus application will be deleted from the laptop/PC device.
Uninstalling this antivirus apart from giving more space in Windows Defender, can also free your PC from overload.
Because, Windows Defender itself is sufficient to be used as a security system in Windows 11.
Not only in this one way, but there are several ways to easily uninstall applications.
Users can use another method which is easier to do (uninstall application on Windows).
3. Restart Security Center Service
The next way to deal with Windows Defender can't be opened in Windows 11 is by reloading the Security Center service.
This method can overcome Windows Defender on Windows 11 that won't open.
Steps to reload Security Center Service are as follows:
- The first step is to open the Task Manager.
- Next, select the Services tab.
- Then find and right click on Security Center.
- After that, reload by clicking Restart.
If the Laptop/PC has been restarted, check again, whether the problem in Windows Defender has been resolved or still persists.
4. Using CMD Command or Command Prompt
It could be that the cause of Windows Defender is a problematic or missing file..
.. Therefore, users can use commands in the form of CMD or Command Prompt to fix it.
The steps that must be taken to use this command are:
- First, click Start on the Windows menu on the taskbar.
- Scroll down to find Windows System.
- Right-click to run Command Prompt and click More.
- After that continue with Run as administrator.
- Type the command i.e. sfc /scannow and press Enter.
- Wait for the process to 100%.
- When it's finished, reload the laptop / PC device to find out the results.
- Done, Windows Defender can be used again.
5. Enable Windows Defender in Windows 11
In some cases, the problem of Windows Defender not opening in Windows 11 is caused by a feature that is turned off or turned off.
Users can turn back the settings on Group Policy..
.. The following steps can be taken:
- Open the Group Policy Editor window by pressing Windows+R on the keyboard.
- Then type gpedit.msc in the Run search field.
- After that, click OK or Enter.
- Enter the Windows Defender directory menu by clicking on the Administrative Templates directory menu on the left panel.
- Next select Windows Components.
- Then click Windows Defender or Windows Defender Antivirus.
- Double click Turn off Windows Defender Antivirus.
- Change Windows Defender settings and click Not Configured on the menu provided.
- Next, click Apply and confirm by clicking OK or Enter.
- Done, make sure Windows Defender can be reopened by opening it.
It should be noted, if Windows Defender has an error and cannot be opened on a laptop/PC device, it will affect the security of your device.
Because, there is no maximum protection from Windows Defender.
Make sure to use the device, use an application or visit a trusted site so that the laptop/PC device can protect it from damage.
Closing
...That's Causes and How to Overcome Windows Defender Cannot be Opened.
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