Are you encountering the Windows Security not opening problem? If your answer is YES, you are in the right place.
Windows Security is a built-in software that secures the device from viruses and external threads.
This software works automatically and continuously scanning your Windows operating device.
Currently, some Windows users have reported the issue regarding the Windows Security and reported the Windows Security not opening problem.
If you encounter the same problem while trying to perform a virus scan, don’t worry.
In this guide, you’ll learn how to fix the Windows Security not opening problem.
So, without any further ado let’s get started:
How to Fix the Windows Security Not Opening Problem
There may be a few reasons why Windows Security not opening on your device. It must be the fault configuration, outdated version of the Windows operating system, corrupted system files, and more.
If you are encountering an issue with Windows Security, you can fix it using the methods below.
Close Other Antivirus Software
Sometimes users are encountering the issue and Windows Security stops working because they have installed other antivirus software.
The Antivirus tool you have installed may conflict with the Windows Security functionality and prevent it from launching or opening.
In that case, closing other Antivirus Software will possibly resolve your problem.
Here is how you can do so:
- Open the Task Manager.
- Go to the Processes tab at the top.
- Here find the Antivirus Software running in the background.
- Right-click on it and select End Task from the menu.
- Now, close the window and open Windows Security to check if the problem is fixed.
Uninstall Another Antivirus Software
If closing the third-party antivirus software you have installed on your device does not fix your problem, you should consider uninstalling it.
To do so, use the following steps:
- Press the Windows + I keys together on your keyboard to open the Settings.
- On the settings window, select Apps.

- Find the Antivirus Software from the list and right-click on it.
- From the menu, select Uninstall.
- Once done, close the window and restart your device to check if the problem is fixed.
- That’s it.
Restart the Windows Security Center Service
Windows runs various services in the background to perform a multiple task.
You may encounter this problem because services related to Windows Security have an issue and do not work properly.
In that case, closing and restarting the Windows Security Center Service will fix your problem.
Here is how you can do so:
- First, press the Windows + R keys to open the Run.
- Type “services.msc” into the text box and hit Enter.
- This will open a window with a list of services, find the Windows Security Center Service from the list and right-click on it.

- Now, select Restart.
- Close the service window and open Windows Security to check if the problem is fixed.
- That’s it.
Reset the Windows Security App
If restarting the Windows Security service does not fix the problem, try resetting the Windows Security app.
Here is how you can do so:
- Click on the Windows Search Bar and search for the PowerShell.
- Run the PowerShell as an administrator.
- Now, execute the following command:
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

- Close the window and open Windows Security to check if it’s launching.
Update Your Windows Version
Sometimes users encounter issues using any system applications because they are using the outdated version of the Windows version.
If that is the case, then updating your Windows version will possibly fix your problem. s
Fix Corrupted System Files
If the Windows system files get corrupted it will cause various problems such as stuck applications, crashing software, third-party apps malfunctioning, and more.
Fortunately, Windows has a built-in tool to repair corrupted system files.
You can run the tool called SFC using the command prompt to fix all corrupted files causing issues.
Here is how you can fix the corrupted system files:
- Click on the Windows Search Bar, search for the Command Prompt, and select Run as administrator.
- Once the command prompt is open, run the following command:
DISM.exe /Online /Cleanup-image /Restorehealth - Next, run the following command to start the scanning process:
sfc /scannow

- Wait for the scanning process to be completed and restart your device.
That’s it, this is how you can fix the Windows Security not opening problem.