[SOLVED] Microsoft Windows Defender Windows Security Not Working in Latest Windows 11/10

Windows security is not working? or windows defender is not working? If yes then simple solution is shared. Fix windows security not working in windows 11 or if windows security not opening windows 11. Learn to fix windows defender not working windows 10 or windows security not opening windows 10.

Try Repairing Windows
Search cmd then run as admin and execute the following 3 commands one by one-

DISM /Online /Cleanup-Image /RestoreHealth

Restart.

Once Done Trying Running System File Checker SFC Scan

sfc /scannow

Restart.

Windows Updates-
Install all the latest Updates and then Restart the PC.
This Tutorial works on Microsoft Windows OS and Laptop Desktop Manufactures HP Dell Lenovo Acer MSI ASUS
Windows 11 Home.
Windows 11 Pro.
Windows 11 Pro Education.
Windows 11 Pro for Workstations.
Windows 11 Enterprise.
Windows 11 Education.
Windows 11 Mixed Reality.

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[PJ]

Last 2 commands restored the defender for me. Was not found under settings search before hand

[Adrot]

Neither of the provided steps have worked for me unfortunately, do you have another solution ?

[agenttxgaming]

Thank you!! Simply hitting the repair button fixed my issue!

[shujahsajeel]

i did^nt find security option . should i download it or what?

[xk_rout]

Thank you so much. It works fine now whenever this happens again i'm definitely coming back 👍

[wizardgaming]

In first command it is saying that 'windows repair reatart is pending try after doing restart ' I restarted several times after doing repair of windows security

[AimeenELMA]

hi, why i cannot find ' ' WINDOWS SECURITY ' ' in apps and features

[len]

Thank you very much for this - super helpful!

[Silver_Swan_MK]

Can you help me? I don't have Windows Defender, and the Real-Time Protection are permanently turned off and idk what to do.

[wizardgaming]

Still not opening black screen on windows security app

[choprasoundmubarakpur]

After 1st command I restart our PC then I unable to sign in please help 😭🙏

[writtenmemes]

I have windows 10, and I want to install a app from unknown source, and for that I have to open the windows security and turn off some options, but whenever I tap on the windows security it gets stuck and nothing opens, please help🙏🙏

[KiAKaI]

Problem solved! Thank you for this helpful video

[train-station-]

Thanks g this helped me I was tryna to unblock websites but it kept canceling them so I could not even watch yt now I can do all of it again:D thanks g

[greeddeath]

ah i did this part "DISM /Online /Cleanup-Image /RestoreHealth" and its stuck on 62.3% should i just wait it out or restart my pc help pls

[deepakjoshi]

Really helpful brother. Please be there in such condition for help.❤

[rahuludaynair]

After I did the DISM part it's showing an error. Error: 0x800f081f The source files could not be found. Any help?

[Talha-mhsu]

What to do if in the search windows security. What if it does not pop up there.?

[captainjerk]

Mine doesn't even have the same things on the screen when I go to settings.
The apps selection is completely different as well.
What happened?

[ylcjeky]

i tried both, but problem is not solved, what can i do, kinldy help me please