Fix Python pip SSL Certificate Verify Failed Error - Troubleshooting Windows Defender 0x80073b01 Error-Fix PHP Composer Install Memory Limit Fatal Error

Updated 2026-06-13 20:00:33backup-recovery
Fix Python pip SSL Certificate Verify Failed Error - Troubleshooting Windows Defender 0x80073b01 Error-Fix PHP Composer Install Memory Limit Fatal Error
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.