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Must enable Hyper-V for "Process Isolation Mode Container"? #14978

@0400H

Description

@0400H

Description

Env

  • Win11 docker desktop v4.49.0
  • Switch to "Windows Containers"
  • "exec-opts": ["isolation=process"]
  • hyper-v disabled

Status

hyper-v disabled

Docker Desktop: hyper-v feature is not enabled.
Cant run.

hyper-v enable

Can run "Process Isolation Mode Container".

Issue

Why need "hyper-v feature"?
Process Isolation Mode Container sames like dont need hyper-v.

Reference

#9748

https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-containers/hyperv-container#process-isolation

Reproduce

Disable "hyper-v feature" with "Windows Containers - isolation-process" Mode.

Expected behavior

No response

docker version

Client:
 Version:           28.5.1
 API version:       1.51
 Go version:        go1.24.8
 Git commit:        e180ab8
 Built:             Wed Oct  8 12:19:16 2025
 OS/Arch:           windows/amd64
 Context:           desktop-windows

Server: Docker Desktop 4.49.0 (208700)
 Engine:
  Version:          28.5.1
  API version:      1.51 (minimum version 1.24)
  Go version:       go1.24.8
  Git commit:       f8215cc
  Built:            Wed Oct  8 12:16:52 2025
  OS/Arch:          windows/amd64
  Experimental:     false

docker info

Client:
 Version:    28.5.1
 Context:    desktop-windows
 Debug Mode: false
 Plugins:
  ai: Docker AI Agent - Ask Gordon (Docker Inc.)
    Version:  v1.9.11
    Path:     C:\Program Files\Docker\cli-plugins\docker-ai.exe
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.29.1-desktop.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-buildx.exe
  compose: Docker Compose (Docker Inc.)
    Version:  v2.40.2-desktop.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-compose.exe
  debug: Get a shell into any image or container (Docker Inc.)
    Version:  0.0.45
    Path:     C:\Program Files\Docker\cli-plugins\docker-debug.exe
  desktop: Docker Desktop commands (Docker Inc.)
    Version:  v0.2.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-desktop.exe
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.31
    Path:     C:\Program Files\Docker\cli-plugins\docker-extension.exe
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v1.4.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-init.exe
  mcp: Docker MCP Plugin (Docker Inc.)
    Version:  v0.24.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-mcp.exe
  model: Docker Model Runner (Docker Inc.)
    Version:  v0.1.45
    Path:     C:\Program Files\Docker\cli-plugins\docker-model.exe
  offload: Docker Offload (Docker Inc.)
    Version:  v0.5.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-offload.exe
  sandbox: Docker Sandbox (Docker Inc.)
    Version:  v0.3.1
    Path:     C:\Program Files\Docker\cli-plugins\docker-sandbox.exe
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     C:\Program Files\Docker\cli-plugins\docker-sbom.exe
  scout: Docker Scout (Docker Inc.)
    Version:  v1.18.3
    Path:     C:\Program Files\Docker\cli-plugins\docker-scout.exe

Server:
 Containers: 9
  Running: 0
  Paused: 0
  Stopped: 9
 Images: 21
 Server Version: 28.5.1
 Storage Driver: windowsfilter
  Windows:
 Logging Driver: json-file
 Plugins:
  Volume: local
  Network: ics internal l2bridge l2tunnel nat null overlay private transparent
  Log: awslogs etwlogs fluentd gcplogs gelf json-file local splunk syslog
 CDI spec directories:
  /etc/cdi
  /var/run/cdi
 Swarm: inactive
 Default Isolation: process
 Kernel Version: 10.0 26100 (26100.1.amd64fre.ge_release.240331-1435)
 Operating System: Microsoft Windows Version 24H2 (OS Build 26100.6899)
 OSType: windows
 Architecture: x86_64
 CPUs: 4
 Total Memory: 16GiB
 Docker Root Dir: D:\docker
 Debug Mode: false
 Labels:
  com.docker.desktop.address=npipe://\\.\pipe\docker_cli
 Experimental: false
 Live Restore Enabled: false
 Product License: Community Engine

Diagnostics ID

....

Additional Info

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