Fix Chrome Error 0x887a0005 on Windows - Fix Windows Defender Proxy Error: Permission Denied-Troubleshooting Outlook 502 Bad Gateway Proxy Issue
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.
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