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Error 0x80072EFE

How to Fix Windows Update Connection Error 0x80072EFE

Fix time: 10 mins Difficulty: Easy 0 views Updated: July 2026

Resolve Windows Update secure handshake failures on Windows 7 & 10.

Symptoms

  • Windows Update throws 0x80072EFE when checking for packages

Common Causes

  • Missing SHA-2 code signing support updates on clean Windows 7/8 installs

Step-by-Step Solutions

Method 1: Install SHA-2 KB Updates Manually

  1. Download KB3138612 standalone installer from Microsoft Update Catalog.
  2. Install the update package and reboot.

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Frequently Asked Questions

SHA-1 hashing algorithm is deprecated due to security vulnerabilities, requiring new certificates.