zhizhu
Home / macos-help / How to Fix Cloudflare Error 525 SSL Handshake Failed - Fix Windows Defender Error 0x80070643 – Version Mismatch-Microsoft Store Sync Not Working After Crash

How to Fix Cloudflare Error 525 SSL Handshake Failed - Fix Windows Defender Error 0x80070643 – Version Mismatch-Microsoft Store Sync Not Working After Crash

2026-06-13 15:03:49
How to Fix Cloudflare Error 525 SSL Handshake Failed - Fix Windows Defender Error 0x80070643 – Version Mismatch-Microsoft Store Sync Not Working After Crash

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.