To audit Microsoft Defender exclusions in Windows 11, open Windows Security and review Virus & threat protection > Manage settings > Exclusions. Remove only entries you can identify as unnecessary; on a work- or school-managed PC, also check the policy that manages Defender. Removing an exclusion restores scanning coverage for its target, but does not remove malware that may already be on the device.
Find exclusions in Windows Security
- Open Start > Settings > Privacy & security > Windows Security.
- Select Virus & threat protection > Manage settings.
- Scroll to Exclusions, then select Add or remove exclusions.
- Review the listed entries. To remove one, select it and choose Remove.
Microsoft documents this route for Windows 10 and Windows 11. Pages or features may be unavailable when an organization manages the device. Microsoft’s Windows Security guidance warns that excluded files are no longer checked by Microsoft Defender Antivirus, which can leave the device and its data vulnerable.
As an Amazon Associate I earn from qualifying purchases.
Understand what each exclusion covers
Windows Security supports four antivirus exclusion types. They reduce scanning coverage for the matched target, so confirm an entry’s owner and purpose before changing it.
| Type | What it excludes | What to check |
|---|---|---|
| File | A specific file. | Confirm the full location and whether the file is still required. |
| Folder | A folder and its contents. | Check what else is stored in the folder; a broad folder exception can cover more than one application file. |
| File type | Files matching the specified extension. | Consider how widely that extension is used; an extension exclusion can affect matching files in many locations. |
| Process | Files opened by the specified process are skipped by real-time scanning. | Use the process’s full path to distinguish it from another executable with the same name. The process executable itself is excluded with a path exclusion, not merely by the process exclusion. |
Microsoft notes that files covered by a process exclusion may still be scanned by scheduled or on-demand scans unless a file or folder exclusion also covers them. The scope described for ordinary Windows Security exclusions is not a substitute for checking the policy and configuration method in use on a managed device. See Microsoft’s exclusion configuration reference and Windows Security guidance.
#1 Best Overall
- USB Fingerprint Key Reader suitable for Windows10/11 Hello features.
- 360 Degrees Detection:Fingerprints can be read from any angle in 360Degrees, set up to 10 Fingerprint IDs.
- 0.05 seconds:Fingerprints authenticated within 0.05seconds. Logins faster and more secure.
- With intelligent learning algorithm, detection and authentication is faster and more secure.
- Advanced Protections:Safely protect your logins and data with Fingerprint Security Device.
List exclusions with elevated PowerShell
PowerShell is useful when you want a compact inventory of the local antivirus preference view. Open PowerShell as an administrator and run:
$p = Get-MpPreference
'ExclusionExtension','ExclusionPath','ExclusionProcess' | ForEach-Object {
$t = $_
$p.$t | ForEach-Object { [pscustomobject]@{Type=$t; Value=$_} }
} | Format-Table -AutoSizeThe output labels each value as an extension, path, or process exclusion. Treat this as a view of local Defender preferences, not proof that a managed device has no additional or overriding policy. Microsoft documents Get-MpPreference and exclusion configuration in its Defender Antivirus exclusion reference.
Rank #2
![FIDO U2F Security Key, Thetis [Aluminum Folding Design] Universal Two Factor Authentication USB (Type A) for Extra Protection in Windows/Linux/Mac OS, Gmail, Facebook, Dropbox, SalesForce, GitHub](https://m.media-amazon.com/images/I/414cv-4SxrL._SL160_.jpg)
- Protect Online Account - Offer a strong factor authentication to your online account. Never lose your accounts through password theft, phishing, hacking or keylogging scams.
- Universal Compatibility - The Thetis U2F key can be used on any websites which support U2F protocol with the latest Chrome installed on your Windows, Mac OS or Linux. (Important Note: Not compatible with any email clients including Apple Mail, Mozilla Thunderbird or Microsoft Outlook)
- FIDO-U2f-Certified - Safety is our priority. Certified by world's largest Ecosystem for Standards-based, interoperable Authentication. Only support U2F protocol (No UAF or OTP). Provide low-cost and simple solution with high security.
- Extremly Durable - Designed with a 360° rotating metal cover that shields the USB connector when not in use. Also, crafted from a durable aluminum alloy to protect the Key from drops, bumps and scratches.
- Portable Design - Compact, ultra-portable design allows you to take your FIDO key anywhere you need it.
Check whether a particular path is excluded
To check a file or folder’s effective exclusion status, run an elevated command prompt or PowerShell session and use Microsoft Defender’s command-line utility:
MpCmdRun.exe -CheckExclusion -Path "C:PathToFileOrFolder"Replace the example path with the target you want to check. Microsoft says this check is supported in Defender Antivirus version 4.18.2111-5.0 (December 2021) and later. It reports exclusion status for that path; it does not establish that the PC is malware-free. See Microsoft’s documentation for checking exclusions.
Rank #3
- Ultra-Compact FIDO2 Security Key - Plug-and-stay or carry on a keychain. This USB-A hardware security key offers portable, always-on protection for desktop and mobile use. (Item Size: 0.75 X 0.74 IN x 0.25 IN)
- USB-A Hardware Key for All Devices - Works with USB-A ports on PC, Mac, Android, and other laptop/notebook device. Enables secure, cross-platform login with FIDO2.0 passkey support.
- FIDO Certified Security Key - Meets FIDO and FIDO2 standards. Works with Google, Microsoft, GitHub, Dropbox, and more. Please check service compatibility before purchase.
- Passwordless Login with Passkey - Supports passkey login via WebAuthn and CTAP2. Enjoy password-free sign-ins where supported. Not all websites or services currently support passkeys.
- Advanced Multi-Factor Authentication - Offers 200 FIDO2 passkey slots and 50 OATH-TOTP slots. Strong, flexible 2FA/MFA support across various apps and authentication platforms.
Remove one identified exclusion with PowerShell
Use the removal cmdlet that matches the exclusion’s type. Run PowerShell as an administrator and substitute the exact value you identified:
Remove-MpPreference -ExclusionPath 'C:ExampleSuspiciousFolder'
Remove-MpPreference -ExclusionExtension '.example'
Remove-MpPreference -ExclusionProcess 'C:ExampleSuspiciousApp.exe'Run only the command or commands that match entries you intend to remove. Microsoft documents Remove-MpPreference as removing specified values; attempting to remove a value that is not in the list reports an error. Add-MpPreference adds values without affecting existing ones, while Set-MpPreference replaces existing exclusions of the specified type with the values supplied. Avoid using Set-MpPreference for casual single-entry cleanup because it can replace other exclusions of that type. Details: Remove-MpPreference and Microsoft’s exclusion configuration reference.
Rank #4
- Point 1 【WINDOWS HELLO COMPATIBLE】 Works with Windows 10 and Windows 11 Windows Hello as a Windows Hello fingerprint reader. This fingerprint reader for Windows 11 supports one-touch fingerprint login to replace passwords, for quick unlock of laptops and desktops.
- Point 2 【PLUG & PLAY, NO DRIVERS REQUIRED】 This plug and play USB fingerprint reader works as a usb fingerprint reader windows 11 dongle. Insert it into any USB port for recognition without extra software or drivers. Its slim compact shape will not block adjacent USB slots on your PC, suitable as a fingerprint reader for pc.
- Point 3 【360° FAST FINGERPRINT SCANNING】 This fingerprint scanner features a 360° all-angle sensor for steady fingerprint matching. The biometric sensor can store multiple fingerprints at the same time, matching the use of multi-user shared desktop and laptop computers.
- Point 4 【ENCRYPTED BIOMETRIC SECURITY】 This fingerprint reader has a built-in encryption chip. The chip blocks unauthorized access to PC login accounts, personal files and stored data. It adds password-free security for fingerprint login on Windows devices.
- Point 5 【PORTABLE FOR WINDOWS DEVICES】 This lightweight biometric finger print device fits home, office and travel scenarios. It works with most Windows laptops, desktops and all-in-one PCs, for convenient unlock when you carry computers outside.
Check policy-managed exclusions separately
On a work- or school-managed PC, the Windows Security screen may not show the whole configuration. Microsoft describes the app as useful for configuring or testing a single device and recommends enterprise management methods for many devices. Changes made in the Windows Security app do not appear in Group Policy exclusions, while Group Policy exclusion changes appear in the app. Intune and other management tools have their own policy views.
Free tools Windows power users keep installed
One-click scans. No signup required.
- If you do not recognize an entry, ask your IT administrator what deployed it and whether it is required before removing it.
- Review the applicable Group Policy, Intune, or other management configuration as well as the local list.
- If an exclusion returns after you remove it, a management policy may be applying it again; confirm the effective policy with the administrator.
Microsoft’s guidance on configuring Defender exclusions explains the distinction between the Windows Security app and enterprise management.
Best Value
- Support Windows 10 / 11 Hello Biometric Authentication: Plug and play with updated Windows OS, provides instant access for Windows computers. Tasks such as login, sign in or unlock can be accomplished with a touch of a finger, no need to remember usernames and passwords
- Up to 5 Fingerprint Registration: Allow family members, close friends, or colleagues to gain access to a single computer. 360° all direction fingerprint registering for better accuracy and faster response.
- Paralleled Software Support: With Smart ID Encryption, encrypting your files has never been so easy. You can specify a folder as an encrypted zone, once a file is copied into the folder, it automatically be encrypted.
- Gets Smarter Over Time: With each fingerprint registry, the scanned data is added to the profile of the enrolled finger. So, the more you use it, the more accurate it gets. Allowing faster access.
- All You Need in a Nano Formfactor: Small and lightweight, takes up no space. Drop it in your pocket and you wouldn't even notice a thing.
Include Attack Surface Reduction exceptions in a broader audit
Attack Surface Reduction (ASR) exceptions are separate from the antivirus path, extension, and process exclusions shown in the inventory command above. For a broader Defender review, inspect the ASR-only list in elevated PowerShell:
(Get-MpPreference).AttackSurfaceReductionOnlyExclusionsReview the policy that configures those exceptions, too. Microsoft documents this separate setting in its ASR rules and exclusions guidance; do not assume the ordinary antivirus exclusions list includes it.
Scan after removing an exclusion if compromise is suspected
Restoring scanning coverage does not clean a file, undo persistence, or show whether malware used the excluded target. If you suspect an infection, update Microsoft Defender security intelligence and run a full scan from Windows Security. Microsoft also offers Microsoft Defender Offline: it restarts into the Windows Recovery Environment and scans without loading Windows, which can make it harder for persistent malware to hide or defend itself. Check Protection history for scan results. See Microsoft’s instructions for protecting your PC from unwanted software and Windows Security scan options.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
