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Fix Windows Security Loading Issue with Built-In Repair Tools

If Windows Security (formerly Windows Defender) won't open or gets stuck on a loading screen, the...

Fix Windows Security 404 Error & Missing Files

If you see a 404 error in Windows Security or get messages about missing files, the Security Cent...

Fix Windows Security 'Permission Denied' Error When Settings Won't Open

You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...

Fix Git SSL Certificate Verification Failed Error

If you see fatal: unable to access 'https://...': SSL certificate problem: certificate veri...

Fix Windows Update Authentication Failed via Credential Manager
When Windows Update fails with an authentication error, the problem often traces back to stored c...

How to Set Up Windows Defender Network Protection for Enterprise
Network Protection in Windows Defender helps block outbound connections to malicious IPs and doma...

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