ComfyUI Desktop is a standalone installation version that can be installed like regular software. It supports quick installation and automatic configuration of the Python environment and dependencies, and supports one-click import of existing ComfyUI settings, models, workflows, and files. You can quickly migrate from an existing ComfyUI Portable version to the Desktop version. ComfyUI Desktop is an open source project, please visit the full code here ComfyUI Desktop hardware requirements:
  • NVIDIA GPU
This tutorial will guide you through the software installation process and explain related configuration details.
As ComfyUI Desktop is still in Beta status, the actual installation process may change

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ComfyUI Desktop (Windows) Download

Please click the button below to download the installation package for Windows ComfyUI Desktop

Download for Windows (NVIDIA)

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ComfyUI Desktop Installation Steps

Double-click the downloaded installation package file, which will first perform an automatic installation and create a ComfyUI Desktop shortcut on the desktop ComfyUI logo Double-click the corresponding shortcut to enter ComfyUI initialization settings

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ComfyUI Desktop Initialization Process

1

Start Screen

ComfyUI Installation Steps - StartClick Get Started to begin initialization
2

Select GPU

ComfyUI Installation Steps - GPU SelectionThe three options are:
  1. Nvidia GPU (Recommended): Direct support for pytorch and CUDA
  2. Manual Configuration: You need to manually install and configure the python runtime environment. Don’t select this unless you know how to configure
  3. Enable CPU Mode: For developers and special cases only. Don’t select this unless you’re sure you need it
Unless there are special circumstances, please select NVIDIA as shown and click Next to proceed
3

Install location

ComfyUI Installation Steps - Installation LocationIn this step, you will select the installation location for the following ComfyUI content:
  • Python Environment
  • Models Model Files
  • Custom Nodes Custom Nodes
Recommendations:
  • Please select a solid-state drive as the installation location, which will increase ComfyUI’s performance when accessing models.
  • Please create a separate empty folder as the ComfyUI installation directory
  • Please ensure that the corresponding disk has at least around 15G of disk space to ensure the installation of ComfyUI Desktop
Not all files are installed in this directory, some files will still be installed on the C drive, and if you need to uninstall in the future, you can refer to the uninstallation section of this guide to complete the full uninstallation of ComfyUI Desktop
After completing this step, click Next to proceed to the next step
4

Migrate from Existing Installation (Optional)

ComfyUI Installation Steps - File MigrationIn this step you can migrate your existing ComfyUI installation content to ComfyUI Desktop. As shown, I selected my original D:\ComfyUI_windows_portable\ComfyUI installation directory. The installer will automatically recognize:
  • User Files
  • Models: Will not be copied, only linked with desktop version
  • Custom Nodes: Nodes will be reinstalled
Don’t worry, this step won’t copy model files. You can check or uncheck options as needed. Click Next to continue
5

Desktop Settings

ComfyUI Installation Steps - Desktop SettingsThese are preference settings:
  1. Automatic Updates: Whether to set automatic updates when ComfyUI updates are available
  2. Usage Metrics: If enabled, we will collect anonymous usage data to help improve ComfyUI
  3. Mirror Settings: Since the program needs internet access to download Python and complete environment installation, if you see a red ❌ during installation indicating this may cause installation failure, please follow the steps below
ComfyUI Installation Steps - Mirror Settings Expand the mirror settings to find the specific failing mirror. In this screenshot the error is Python Install Mirror failure.For different mirror errors, you can refer to the following content to try to manually find different mirrors and replace themThe following cases mainly apply to users in China.

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Python Installation Mirror

If the default mirror is unavailable, please try using the mirror below.
https://python-standalone.org/mirror/astral-sh/python-build-standalone
If you need to find other alternative GitHub mirror addresses, please look for and construct a mirror address pointing to the releases of the python-build-standalone repository.
https://github.com/astral-sh/python-build-standalone/releases/download
Build a link in the following pattern
https://xxx/astral-sh/python-build-standalone/releases/download

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PyPI Mirror

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Torch Mirror

6

Complete the installation

If everything is correct, the installer will complete and automatically enter the ComfyUI Desktop interface, then the installation is successful ComfyUI Desktop Interface

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First Image Generation

After successful installation, you can refer to the section below to start your ComfyUI journey~

First Image Generation

This tutorial will guide you through your first model installation and text-to-image generation

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How to Update ComfyUI Desktop

Currently, ComfyUI Desktop updates use automatic detection updates, please ensure that automatic updates are enabled in the settings ComfyUI Desktop Settings You can also choose to manually check for available updates in the Menu —> Help —> Check for Updates ComfyUI Desktop Check for Updates

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Adding Extra Model Paths

If you want to manage your model files outside of ComfyUI/models, you may have the following reasons:
  • You have multiple ComfyUI instances and want them to share model files to save disk space
  • You have different types of GUI programs (such as WebUI) and want them to use the same model files
  • Model files cannot be recognized or found
We provide a way to add extra model search paths via the extra_model_paths.yaml configuration file

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Open Config File

For the ComfyUI version such as portable and manual, you can find an example file named extra_model_paths.yaml.example in the root directory of ComfyUI:
ComfyUI/extra_model_paths.yaml.example
Copy and rename it to extra_model_paths.yaml for use. Keep it in ComfyUI’s root directory at ComfyUI/extra_model_paths.yaml. You can also find the config example file here
If the file does not exist, you can create it yourself with any text editor.

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Example Structure

Suppose you want to add the following model paths to ComfyUI: 
📁 YOUR_PATH/
  ├── 📁models/
  |   ├── 📁 lora/
  |   │   └── xxxxx.safetensors
  |   ├── 📁 checkpoints/
  |   │   └── xxxxx.safetensors
  |   ├── 📁 vae/
  |   │   └── xxxxx.safetensors
  |   └── 📁 controlnet/
  |       └── xxxxx.safetensors
Then you can configure the extra_model_paths.yaml file like below to let ComfyUI recognize the model paths on your device: 
my_custom_config:
    base_path: YOUR_PATH
    loras: models/loras/
    checkpoints: models/checkpoints/
    vae: models/vae/
    controlnet: models/controlnet/
or 
my_custom_config:
    base_path: YOUR_PATH/models/
    loras: loras
    checkpoints: checkpoints
    vae: vae
    controlnet: controlnet
Or you can refer to the default extra_model_paths.yaml.example for more configuration options. After saving, you need to restart ComfyUI for the changes to take effect. Below is the original config example: 
#Rename this to extra_model_paths.yaml and ComfyUI will load it


#config for a1111 ui
#all you have to do is change the base_path to where yours is installed
a111:
    base_path: path/to/stable-diffusion-webui/

    checkpoints: models/Stable-diffusion
    configs: models/Stable-diffusion
    vae: models/VAE
    loras: |
         models/Lora
         models/LyCORIS
    upscale_models: |
                  models/ESRGAN
                  models/RealESRGAN
                  models/SwinIR
    embeddings: embeddings
    hypernetworks: models/hypernetworks
    controlnet: models/ControlNet

#config for comfyui
#your base path should be either an existing comfy install or a central folder where you store all of your models, loras, etc.

#comfyui:
#     base_path: path/to/comfyui/
#     # You can use is_default to mark that these folders should be listed first, and used as the default dirs for eg downloads
#     #is_default: true
#     checkpoints: models/checkpoints/
#     clip: models/clip/
#     clip_vision: models/clip_vision/
#     configs: models/configs/
#     controlnet: models/controlnet/
#     diffusion_models: |
#                  models/diffusion_models
#                  models/unet
#     embeddings: models/embeddings/
#     loras: models/loras/
#     upscale_models: models/upscale_models/
#     vae: models/vae/

#other_ui:
#    base_path: path/to/ui
#    checkpoints: models/checkpoints
#    gligen: models/gligen
#    custom_nodes: path/custom_nodes
For example, if your WebUI is located at D:\stable-diffusion-webui\, you can modify the corresponding configuration to 
a111:
    base_path: D:\stable-diffusion-webui\
    checkpoints: models/Stable-diffusion
    configs: models/Stable-diffusion
    vae: models/VAE
    loras: |
         models/Lora
         models/LyCORIS
    upscale_models: |
                  models/ESRGAN
                  models/RealESRGAN
                  models/SwinIR
    embeddings: embeddings
    hypernetworks: models/hypernetworks
    controlnet: models/ControlNet

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Desktop Python Environment

The desktop installation will create a Python virtual environment in your chosen installation directory, typically a hidden .venv folder. If you need to handle dependencies for ComfyUI plugins, you’ll need to do so within this environment. Using the system command line directly risks installing dependencies to the system environment, so please follow the instructions below to activate the appropriate environment.

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How to use the Desktop Python environment?

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How to Uninstall ComfyUI Desktop

For ComfyUI Desktop you can use the system uninstall function in Windows Settings to complete software uninstallation ComfyUI Desktop Uninstallation If you want to completely remove all ComfyUI Desktop files, you can manually delete these folders:
  • C:\Users<YOUR_USERNAME>\AppData\Local@comfyorgcomfyui-electron-updater
  • C:\Users<YOUR_USERNAME>\AppData\Local\Programs@comfyorgcomfyui-electron
  • C:\Users<YOUR_USERNAME>\AppData\Roaming\ComfyUI
The above operations will not delete your following folders. If you need to delete corresponding files, please delete manually:
  • models files
  • custom nodes
  • input/output directories

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Troubleshooting

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Display unsupported devices

ComfyUI Installation Steps - Unsupported Device Since ComfyUI Desktop (Windows) only supports NVIDIA GPUs with CUDA, you may see this screen if your device is not supported

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​Error identification​

If installation fails, you should see the following screen ComfyUI Installation Failed It is recommended to take these steps to find the error cause:
  1. Click Show Terminal to view error output
  2. Click Open Logs to view installation logs
  3. Visit official forum to search for error reports
  4. Click Reinstall to try reinstalling
Before submitting feedback, it’s recommended to provide the error output and log files to tools like GPT ComfyUI Installation Failed - Error Log ComfyUI Installation Failed - GPT Feedback As shown above, ask the GPT for the cause of the corresponding error, or remove ComfyUI completely and retry the installation.

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Feedback Installation Failure

If you encounter any errors during installation, please check if there are similar error reports or submit errors to us through: When submitting error reports, please ensure you include the following logs and configuration files to help us locate and investigate the issue:
  1. Log Files
FilenameDescriptionLocation
main.logContains logs related to desktop application and server startup from the Electron process
comfyui.logContains logs related to ComfyUI normal operation, such as core ComfyUI process terminal output
ComfyUI Log Files Location
  1. Configuration Files
FilenameDescriptionLocation
extra_model_paths.yamlContains additional paths where ComfyUI will search for models and custom nodes
config.jsonContains application configuration. This file should not be edited directly
ComfyUI Config Files Location