zhizhu
Home / developer-tools / Fix OneDrive Sync Stuck on 'Processing Changes' - Windows Defender Proxy Error Troubleshooting-Fix Firefox Secure Connection Failed Certificate Errors

Fix OneDrive Sync Stuck on 'Processing Changes' - Windows Defender Proxy Error Troubleshooting-Fix Firefox Secure Connection Failed Certificate Errors

2026-06-14 09:56:17
Fix OneDrive Sync Stuck on 'Processing Changes' - Windows Defender Proxy Error Troubleshooting-Fix Firefox Secure Connection Failed Certificate Errors

Result check

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