Windows 11 Defender keeps turning off?
Look through this article fromMiniTooland it’s possible for you to find some simple troubleshooting tips.
Besides, some other ways to keep your PC safe are recommended here.

To run this program, go toWindows configs > Privacy & security > Open Windows Security.
However, this antivirus program cannot always function properly.
Sometimes you may findMicrosoft Defender Offline scan ain’t running.
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Besides,Windows Defender not workingoften happens.
Sometimes Windows 11 Defender keeps turning off.
This topic will be talked about in this post.

Not only in Windows 11, but this issue can also happen in Windows 10.
Some users have reported that Windows 11 virus and threat protection keeps turning off.
Move to the next part to look for fixes.

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.
Step 1: PressWin + Ito open tweaks.

Step 2: Under thePrivacy & securitypage, clickOpen Windows Security.
Step 3: ClickVirus & threat protection, scroll down toVirus & threat protection updates, and clickProtection updates.
Step 4: ClickCheck for updates.
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After the update, cycle your PC and go to peek if Windows Defender keeps turning off.
If this fix cannot work, try other troubleshooting tips.
To get rid of the trouble, go to uninstall that antivirus program from your PC.

Step 1: Typecontrol panelin the search bar and tap the best match to run this tool.
Step 2: List the items byCategoryand clickUninstall a programfrom theProgramssection.
Step 3: Locate the antivirus software, right-punch it and chooseUninstall.

To get out of stuck, you could venture to restart or refresh this service via the steps below.
Step 1: PressWin + Rto get theRundialog, typeservices.mscand clickOK.
Step 2: LocateWindows Defender Firewalland right-punch it to chooseRestart.
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If this option is greyed out, this means this service is running in the background.
And you could chooseRefresh.
After that, go to look to see if Windows Security is working as normal.

Hence, turn off the option of Turn off Windows Defender by following the steps below.
Step 2: Navigate toLocal Computer Policy > Administrative Templates > Windows Components.
Step 3: In theWindows Defender Antivirusfolder, double-click onTurn off Windows Defender Antivirusto open a new window.

The AntiSpyware file has been proven to be a roadblock for a long time.
Step 3: LocateDisableAntiSpyware.
Step 4: Double-click this new value and enter0to the section ofValue data.
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Step 5: After that, power cycle your PC and verify if Windows 11 Defender keeps turning off.
Step 1: Go to launch Windows 11 parameters viaWin + I.
Step 2: ClickApps > App & features.

Step 3: LocateWindows Security, nudge the ellipsis and clickAdvanced optionsfrom its flyout menu.
Step 4: Move to theResetsection and click theRepairbutton.
If this couldnt work, click theResetbutton.
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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.
Run an SFC Scan
Running an SFC (System File Checker) scan is recommended here.
If Windows 11 Defender keeps turning off, you’re able to have a shot.
Step 1: Typecmdto the search bar, right-clickCommand Promptand chooseRun as administrator.
Step 2: Execute the command sfc /scannow.
Just key in it into the CMD window and pressEnterto begin the verification.
Step 1: Typerestoreto the search box and clickCreate a restore point.
Step 2: In theSystem Protectiontab, clickSystem Restore.
Step 3: choose the proper restore point, confirm the restore point and clickFinishto start the restoration operation.
Before starting the resetting, it’s possible for you to choose toback up your important files.
Just go toSettings > System > Recovery > Recovery options > Reset PC.
Choose the first option to keep your personal files.
Then, selectCloud download or Local reinstall.
Finish the operation by following the on-screen instructions.
Windows 11 Defender keeps turning off?
Multiple solutions are for you.
When it keeps turning off, try the above ways to help you out.
If you only use Windows Defender to keep your PC safe, it is not enough.
In this part, we recommend some other ways to safeguard the machine.
Is Windows Defender enough?
If you have doubts about this question, like read this post carefully.
Through the text, you may find the answer.
They attack the system, steal your data and even cause data loss & system breakdown.
In terms of PC backup, you could run theWindows 11 backup software MiniTool ShadowMaker.
Still hesitant about it?
Just nudge the following button to download its Trial Edition for 30-day free trial.
Step 2: ClickKeep Trialto go on.
Step 3: On theBackuppage, system partitions have been chosen by default.
To create a system image, directly skip to the next step.
Step 5: Start the backup task now by clickingBack up Now.
How to backup Windows 11 to an external hard drive or USB flash drive?
See this post that focuses on Windows 11 backup for files and system.
(12 Methods).
After trying the solutions above, you may get out of trouble.
If you have other suggestions, welcome to tell us in the comment below.