Fix Windows Cannot Access Shared Folder Error 0x80070035 - Taskbar Icons Disappeared After Windows Update Fix-Cloudflare 521 Error: How to Fix Server Timeout

Updated 2026-07-28 08:00:50developer-tools
Fix Windows Cannot Access Shared Folder Error 0x80070035 - Taskbar Icons Disappeared After Windows Update Fix-Cloudflare 521 Error: How to Fix Server Timeout
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.