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Failed to install plugin: Access is denied. (os error 5) #4937

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Description

@jaredrakoff

Describe the bug

copilot-cli-bug.md

Affected version

latest

Steps to reproduce the behavior

On Copilot CLI run 'copilot plugin update --all' or update all on copilot desktop. Error happens sometimes on specific plugins. Refer to copilot-cli-bug.md for more details.

Expected behavior

No response

Additional context

No response

Activity

  1. added theissue type on Sep 22, 2026
  2. changed the title [-]Update all fails with os error "Access is denied"[/-] [+]Failed to install plugin: Access is denied. (os error 5)[/+] on Sep 22, 2026
  3. added
    area:platform-windowsWindows-specific: PowerShell, cmd, Git Bash, WSL, Windows Terminal
    area:pluginsPlugin system, marketplace, hooks, skills, extensions, and custom agents
    and removed on Oct 26, 2026
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    area:platform-windowsWindows-specific: PowerShell, cmd, Git Bash, WSL, Windows Terminalarea:pluginsPlugin system, marketplace, hooks, skills, extensions, and custom agents

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