What Is Windows Defender Security Warning?
You might also see another window with an error code and a support phone number.
This situation always happens when you click a suspicious site or after you mistakenly install malware.

The following data has been compromised.
Windows Defender Security Warning Is Fake!
It Is a Phishing Scam!
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At first glance, you might mistake this for a warning from Windows Defender.
However, if you are familiar with Windows Defender, you will know it doesnt work like this.
This Windows Defender Security Warning is flawed in both format and content.

So, dont be fooled.
you gotta immediately remove this warning to make your machine go back to normal.
In the next part, we will introduce some useful solutions to remove this warning from your gadget.

How to Remove the Windows Defender Security Warning from your rig?
The website may not be safe, with some unsafe download links.
In a situation like this, you should not bring up the website next time.

However, some users report that they cant wrap up the warning window by simply clicking the close icon.
Step 1: Right-clickStartand selectTaskbar.
Step 2: ClickShow moreif you only see a few options.
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Step 3: Find and choose the progress you want to close, then click theEnd taskbutton.
Step 4: start your gear.
Step 3: ClickAdvancedfrom the left panel.

Step 4: ClickReset and clean upunder Advanced.
Step 5: ClickRestore controls to their original defaultsfrom the right panel.
Step 6: Click theReset settingsbutton from the pop-up window to reset Chrome.
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Reset Firefox prefs to Default
Step 1: Open Mozilla Firefox.
Step 2: go for the hamburger button at the top-right corner.
Step 3: SelectHelpto continue.
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Step 4: On the next page, clickMore troubleshooting informationto continue.
Step 5: ClickRefresh Firefoxon theTroubleshooting informationpage to continue.
Step 6: Click theRefresh Firefoxbutton on the pop-up window to confirm the operation.

Reset Edge configs to Default
Step 1: Open Microsoft Edge.
Step 2: tap the 3-dot menu on the top-right corner and selectSettings.
Step 3: ClickReset settingsfrom the right menu on the configs page.

Step 4: ClickRestore configs to their default valueson the right panel.
Step 5: Click theResetbutton on the pop-up interface to confirm the operation.
Many users have solved this issue by using this method.
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you’ve got the option to also do this to have a shot.
Step 1: Uninstall your web internet tool.
Open your web net web client and test whether you still receive the fake Windows Defender Security Warning again.
you’re free to use professional anti-virus software like Bitdefender, Norton, Avast, etc.
to scan your rig and remove the found viruses and malware.
Do you know how to enable or disable Microsoft Defender in Windows 11?
In this post, we will show you a full guide.
Step 2: Select Windows Security to open it.
Step 3: ClickVirus & threatto continue.
Step 4: Click theScan optionslink.
Step 5: Select Full scan (we recommend this scan method to perform a deep scan).
Step 6: Click theScan nowbutton to start scanning your equipment.
A full scan will last for a while.
But the process will not disturb your work.
you might feel free to use your PC as normal.
Different software has different operation methods.
How to Protect your rig from Viruses and Malware?
So, youd better take useful measures to prevent your machine from viruses and malware.
(12 Methods)
How to Recover Files Deleted by Viruses?
Virus or malware attacks may cause data loss issues on your box.
Well then, do you know how to get your data back?
This software has a trial edition.
MiniTool Power Data Recovery TrialClick to Download100%Clean & Safe
This tool is user-friendly.
The software interface is easy to understand.
With only a few simple clicks, you could get your data back.
Step 1:Open MiniTool Power Data Recovery that you have installed.
Step 3:When the scanning ends, you could see the scan results.
Find your needed files.
The destination path should not be the original location.
Otherwise, the lost files could be overwritten and become unrecoverable.
Backing up Your Data and System Is Necessary
The threats to your gear are everywhere.
These threats can easily adversely affect your gear data and system.
MiniTool ShadowMaker is such a program that even supports automatic backup.
It can also work on all Windows versions.
It has a trial edition.
you’re able to use it for free within 30 days.
See this post that focuses on Windows 11 backup for files and system.
There should be one way suitable for you.