Or sometimes you get other errors.
No matter which situation you have, you cannot use Windows Defender for PC protection as normal.
Fortunately, it is not a difficult task to solve this issue if you follow the methods below.
What if you meet the error this setting is managed by your administrator when using Windows Defender?
Find solutions from this post now.
So, verify your date and time are set correctly.
Step 1: Click theStarticon from the Taskbar in Windows 11 and chooseSettingsto open this app.
Step 2: Move to theTime & languagetab on the left side and clickDate & timein the right pane.
Step 3: Click theChangebutton to set the correct time and date.
To fix Windows 11 Windows Defender not working, double-check the service is running properly.
Step 3: Go to find theSecurity Centerservice from the right pane, right-click it and chooseRestart.
Step 4: Double-click each service to open thePropertieswindow and set theStartup typetoAutomatic.
After that, go to see if Windows Defender can work.
If it is still not working as normal, try other methods below.
Step 1: ClickStart > Settingsto get Windows 11 controls interface.
Step 2: Go toWindows Updatein the left sidebar and clickCheck for updates.
Then, you may be able to run Windows Defender for PC protection against viruses and threats.
This post shows you multiple methods for this work.
This means if Windows Defender stops working due to faulty files, the scan can fix this issue.
Step 1: Typecmdto the search box and right-select Command Prompt to chooseRun as administrator.
Step 2: In the CMD window, jot down insfc /scannowand pressEnterto execute this scanning task.
To get rid of the trouble, you could attempt to perform a clean boot.
Safe Mode: whats the difference, when and how to use?
After reading this post, you might clearly know all the answers to these questions.
Step 1: Open theRunwindow by pressingWin + R, typemsconfig,and clickOK.
Step 2: Under theServicestab, tick the checkbox ofHide all Microsoft Services.
Step 3: After that, clickDisable allto disable all the services except Microsoft services.
Step 4: Go to theStartuptab and clickOpen Task Manager.
Step 5: Choose programs individually and clickDisableto disable them to fix Windows Security not working in Windows 11.
Step 2: Go to this path:Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender.
Step 3: LocateDisableAntiSpywarein the right pane.
If it is not here, right-clickWindows Defenderand chooseNew > DWORD (32-bit) Valueto create it.
Step 4: Double-click this key and set its value data to0.
How to reset Windows Security apps in Windows 11?
If you are looking for the answer to this issue, this post is what you need.
Step 1: Launch the Windows configs app by pressingWin + I.
Step 2: ClickApp > App & features.
Step 3: Scroll down to findWindows Security, click thethree-dot menuand chooseAdvanced options.
Step 4: In the new window, go to theResetsection, clickRepairto repair it.
If this cannot work, clickResetto reset this app.
To do this task, go toSettings > System > Recovery > Recovery options > Reset this PC.
To know more information about PC resetting or reinstallation, refer to this post How to Reinstall Windows 11?
Try 3 Simple Ways Here Now!
Windows Security missing in Windows 11/10 is a common issue on your PC after an update.
If you meet it, try these solutions here to easily fix it.
Is Windows Defender not working in Windows 11 or Windows 11 Security not working?
Try these solutions to fix it.
In practice, only running antivirus is not enough to keep your PC safe.
From this post Is Windows Defender Enough?
More Solutions to Protect PC, you know the reasons.
Besides, you had better create a system image to avoid system breakdown due to virus infection.
Well then, how can you back up your setup in Windows 11?
A professionalPC backup softwareshould be your good assistant.
Here, we strongly recommend using MiniTool ShadowMaker.
Besides, data sync is also supported.
Step 2: ClickBackupand it’s possible for you to see this software backs up the system by default.
If it’s crucial that you back up files, clickSourceto go to choose files you need.
Step 3: After selecting backup source and destination, clickBack up Nowto execute the backup task immediately.
After reading this post, you should know how to get rid of this issue.
Just try these solutions above to fix your issue.
Besides, you had better take some measures to verify the security of your PC.
