How to Fix Cloudflare Error 525: SSL Handshake Failed - PowerShell Cache Clear: Scripts for DNS, Windows Update, Fonts-Windows Update Error 0x80070643 Fix Guide

Updated 2026-06-13 19:01:31developer-tools
How to Fix Cloudflare Error 525: SSL Handshake Failed - PowerShell Cache Clear: Scripts for DNS, Windows Update, Fonts-Windows Update Error 0x80070643 Fix Guide
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.