Cloudflare 521 Error After Update: Fixes That Work - Resolve Windows Update 0x800f0922 High Memory-Fix Windows Search Error 0x80070005 on Ubuntu Dual Boot
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.