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Open Start, search for Windows Security, and open the app. Its protection-area cards show whether Windows reports an issue or recommends an action. Open the relevant card to inspect the details; a green status is not proof that a device is free of every threat.
Read the Windows Security status icons
Scan the protection-area cards on the app’s home page. Microsoft describes the icons this way in its Windows Security App Overview:
- Green: the device is sufficiently protected and there are no recommended actions.
- Yellow: there is a safety recommendation to review.
- Red: something needs immediate attention.
These colors summarize the app’s reported status. Open a yellow or red card and read the specific message: a recommendation does not necessarily mean malware has been found.
Check antivirus protection and its provider
- In Windows Security, select Virus & threat protection.
- Review the current-threat information, last scan details, and protection settings. This page also provides scan options, as described in Microsoft’s Windows Security guidance.
- To see which antivirus is registered, select Who’s protecting me?, then Manage providers. You can also open Settings > Manage providers for the provider summary.
Microsoft Defender Antivirus may be off because a compatible third-party antivirus is active. Check the provider listing before treating Defender’s off state as a sign that no antivirus is registered. If real-time protection is off, files you open or download are not scanned for threats while it remains off; see Microsoft’s Virus & threat protection guidance.
#1 Best Overall
- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
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Check firewall status for the network you are using
Open Firewall & network protection. Windows shows firewall information for domain, private, and public network profiles. Check the profile corresponding to the network currently in use and review its Microsoft Defender Firewall status; the state can differ across profiles. Microsoft explains the profiles and settings in its Firewall & network protection guidance.
On an organization-managed computer, policy may control or lock firewall settings. If a setting cannot be changed, contact your IT administrator rather than trying to work around the policy.
Rank #2
- POWERFUL SECURITY KEY: The Security Key NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key NFC via USB-A and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
Use Protection history to understand recent changes
Open Protection history to review recent actions, detected items, and services that were turned off. Microsoft says Protection History retains entries for two weeks. Administrator privileges are required to view details for threats. See Microsoft’s Protection History guidance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.If the status is unclear
- Open the card with the warning and follow its specific recommendation; do not assume a yellow icon means an active infection.
- For antivirus, compare the state shown on Virus & threat protection with the provider listed under Manage providers.
- For firewall, verify the profile for the network in use rather than relying on another profile’s status.
- If the device is managed by an organization, some pages or controls may be unavailable or governed by policy.
Windows Security’s interface and cited Microsoft guidance apply to Windows 10 and Windows 11, though the available pages can vary on managed devices.
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Best Value
- POWERFUL SECURITY KEY: The YubiKey 5C NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5C NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5C NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
Rank #4
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- Certified with the new FIDO2 standard, T120 provides the benefit of fast login and strong protection against phishing, account takeover as well as many other online attactks.
- Works with : Bank of America, Github, Google, Microsoft, DUO, Twitter, Facebook, Dropbox, Apple, ebay, BINANCE, mor and more.
- Fits USB-C port : Insert the T120 security key into the USB-C port of each service and log in conveniently with one touch
- For the driver download and user guide, please visit TrustKey Solutions Home support page.
Rank #3
- POWERFUL SECURITY KEY: The YubiKey 5 NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5 NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5 NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
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