How to Fix Cloudflare Error 525: SSL Handshake Failed - How to Fix KMS Activation Error 0xc004f074-Windows Update 0x800f0831 Metered Network Fix

Updated 2026-06-13 15:42:05developer-tools
How to Fix Cloudflare Error 525: SSL Handshake Failed - How to Fix KMS Activation Error 0xc004f074-Windows Update 0x800f0831 Metered Network Fix
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.