Fixing Windows Update Error 0x800f081f with DISM - Fix Windows 11 Installation Assistant Frozen During Update-Recover from Detached HEAD in IntelliJ IDEA

Updated 2026-07-28 16:39:03office-tools
Fixing Windows Update Error 0x800f081f with DISM - Fix Windows 11 Installation Assistant Frozen During Update-Recover from Detached HEAD in IntelliJ IDEA
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.