Windows 10 and 11 come pre-installed with a free antivirus program called Windows Security.
This program protects your rig from various security sites, such as malware, viruses, PUPs, etc.
Also, the latest version of Windows Security includes a security feature that protects your box from ransomware attacks.

Its a very reliable security solution that provides real-time antivirus protection.
However, Windows Security is not completely free from flaws, and users frequently report problems.
For example, many users report that it does not open at all.

Why Windows Security Doesnt Open?
Windows Security app may fail to open for a few reasons.
It could be system file corruption, invalid registry entries, etc.

Here are some prominent reasons that lead to such problems.
If you are experiencing such problems, you have landed on the right page.
Heres what you’re gonna wanna do.

First, choose the Windows 11 Start Menu and jot down inWindows Security.
On the right pane, click onApp configs.
Now scroll down and click theRepairbutton, as shown below.

Now, wait until the process is completed.
Once completed, you must initiate the app to test whether the program persists.
Heres what you should probably do.

First, punch the Windows 11 Start Menu and throw in in Windows Security.
Now scroll down and click theResetbutton, as shown below.
Next, follow the on-screen instructions to complete the reset process.

Sometimes, the service fails to start, leading to Windows Security not opening the problem.
Hence, we must restart the security center service to fix the Windows Security not opening problem.
Press theWindows Key + Rbutton to initiate the RUN dialog box.

On the RUN dialog box, throw in inservices.mscand hit the Enter button.
On the Windows services, find theSecurity Centerservice.
Right-choose the Security Center and selectRestart.

This is how you’re able to fix Windows Security Not opening problem on Windows 11.
Run an SFC Scan
System file corruption is another reason Windows Security does not open.
Hence, we must run an SFC scan to fix the corrupted system files.

Heres what you better do.
First, open Windows Search and bang out inCommand Prompt.
Right-tap on the Command Prompt and selectRun as administrator.

On the Command Prompt, entersfc /scannow
4.
Now, wait until the process is complete.
If Windows detects any problem, it will automatically fix it.

- pop in in Command Prompt on the Windows 11 Search.
Next, right-select theCommand Promptand select Run as administrator.
When the Command Prompt opens, execute this command and press Enter.

So, if you are using any antivirus program, you better turn it off.
If disabling other antivirus programs didnt help, uninstall it from your system.
Once youve uninstalled other security programs, you must check whether Windows Security is opening.

As a result,Windows Security wont open.
To sort this out, we must first find and turn off the problematic startup app.
Press theWindows Key + Rbutton to bring up the RUN dialog box.

On the RUN dialog box, entermsconfigand hit the Enter button.
Select theServicestab on the System Configuration pop-up, as shown below.
Now check the box behindHide all Microsoft Servicesand click theDisable Allbutton.

Next, switch to theStartuptab, as shown below.
Next, tap on theOpen Task Managerlink.
Under Startup, select a program and click theDisablebutton.

Repeat this step until you turn off all the programs.
After making the changes, kickstart your Windows 11 PC.
Your PC will restart without any third-party app.

If Windows Security opens after the restart, you better check your recently installed apps & programs.
So, its recommended that you update Windows 11 to fix bug-related problems.
To update Windows 11, openSettings > Windows Updateand click theCheck for Updatesbutton.

You dont need to use the command-line tool to reset your box, and you wont lose your data.
On Windows 11, you get the reset options on the controls app and can keep your files.
But resetting will still turn all controls and apps to their default state.

Heres how to reset Windows 11.
- punch the Windows 11 Start button and selectSettings.
When the parameters app opens, switch to Windows Update > Advanced Options.

On the right side, click onRecovery.
Now scroll down to the Recovery options and click theReset PCbutton.
Now, you must choose whether to keep your files or Remove everything.

PickKeep my filesif you wish to hold your files.
After selecting, follow the on-screen instructions to complete the reset part.
After the reset, pop pop the Windows Security app again.

This time, the Windows Security app will open.
We are sure these methods will help you fix the Windows Security app not opening problem on Windows 11.
I hope this article helped you!

just share it with your friends also.
If you have any doubts, let us know in the comment box below.
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