# How to Install ComfyUI on Windows: Complete Beginner Guide

- Link: https://aigetpro.com/install-comfyui-windows/
- Published: 2026-10-28T22:18:21+00:00
- Author: Arsalan Bilal

**By [Arsalan Bilal](https://aigetpro.com/author-arsalanbilal/)**, AI tools researcher
and digital publisher at AiGetPro **Last verified: October 2026**

**Quick answer:** To install ComfyUI on Windows, download the official [ComfyUI Desktop installer](https://www.comfy.org/download)
from Comfy.org, run it, choose a local installation, and complete the setup wizard.
Then add a compatible AI model, load a basic text-to-image workflow, and click Queue
Prompt to generate your first image. Choose the Portable version if you prefer a
self-contained folder and manual control.

![](https://aigetpro.com/wp-content/uploads/2026/10/image-7-1024x538.png)

One tutorial tells you to install Python, another mentions CUDA, and a third has
you downloading several gigabytes of model files, so it is easy to see why ComfyUI
looks intimidating. For a first install, you can skip most of that and use ComfyUI
Desktop. If you prefer to manage the installation yourself, the Portable version
is another option.

This guide covers Desktop and Portable installs, your first model, and the errors
beginners hit most often.

Table of Contents

 [Toggle](https://aigetpro.com/install-comfyui-windows/#)

 * [ComfyUI Windows Requirements: Quick Answer](https://aigetpro.com/install-comfyui-windows/#ComfyUI_Windows_Requirements_Quick_Answer)
 * [What Is ComfyUI, and What Can You Do With It?](https://aigetpro.com/install-comfyui-windows/#What_Is_ComfyUI_and_What_Can_You_Do_With_It)
    - [How ComfyUI Differs From a Basic AI Image Generator](https://aigetpro.com/install-comfyui-windows/#How_ComfyUI_Differs_From_a_Basic_AI_Image_Generator)
    - [Is ComfyUI Free to Install and Use Locally?](https://aigetpro.com/install-comfyui-windows/#Is_ComfyUI_Free_to_Install_and_Use_Locally)
 * [Check Your Windows PC Before Installing ComfyUI](https://aigetpro.com/install-comfyui-windows/#Check_Your_Windows_PC_Before_Installing_ComfyUI)
    - [Which Windows Versions Does ComfyUI Support?](https://aigetpro.com/install-comfyui-windows/#Which_Windows_Versions_Does_ComfyUI_Support)
    - [Do You Need an NVIDIA, AMD, or Intel GPU?](https://aigetpro.com/install-comfyui-windows/#Do_You_Need_an_NVIDIA_AMD_or_Intel_GPU)
    - [How Much RAM, VRAM, and Storage Should You Have?](https://aigetpro.com/install-comfyui-windows/#How_Much_RAM_VRAM_and_Storage_Should_You_Have)
 * [ComfyUI Desktop vs Portable: Which Installation Method Is Best?](https://aigetpro.com/install-comfyui-windows/#ComfyUI_Desktop_vs_Portable_Which_Installation_Method_Is_Best)
    - [Choose ComfyUI Desktop for the Simplest Setup](https://aigetpro.com/install-comfyui-windows/#Choose_ComfyUI_Desktop_for_the_Simplest_Setup)
    - [Choose ComfyUI Portable for a Self-Contained Folder](https://aigetpro.com/install-comfyui-windows/#Choose_ComfyUI_Portable_for_a_Self-Contained_Folder)
    - [When Should You Use Manual Installation?](https://aigetpro.com/install-comfyui-windows/#When_Should_You_Use_Manual_Installation)
 * [How to Install ComfyUI on Windows Using Desktop](https://aigetpro.com/install-comfyui-windows/#How_to_Install_ComfyUI_on_Windows_Using_Desktop)
    - [Step 1: Download the Official Windows Installer](https://aigetpro.com/install-comfyui-windows/#Step_1_Download_the_Official_Windows_Installer)
    - [Step 2: Run the Installer](https://aigetpro.com/install-comfyui-windows/#Step_2_Run_the_Installer)
    - [Step 3: Choose a Local Installation](https://aigetpro.com/install-comfyui-windows/#Step_3_Choose_a_Local_Installation)
    - [Step 4: Finish Setup and Open ComfyUI](https://aigetpro.com/install-comfyui-windows/#Step_4_Finish_Setup_and_Open_ComfyUI)
    - [Step 5: Check for Updates](https://aigetpro.com/install-comfyui-windows/#Step_5_Check_for_Updates)
 * [How to Install ComfyUI Portable on Windows](https://aigetpro.com/install-comfyui-windows/#How_to_Install_ComfyUI_Portable_on_Windows)
    - [Step 1: Download the Correct Portable Package](https://aigetpro.com/install-comfyui-windows/#Step_1_Download_the_Correct_Portable_Package)
    - [Step 2: Extract the Archive](https://aigetpro.com/install-comfyui-windows/#Step_2_Extract_the_Archive)
    - [Step 3: Start ComfyUI With the Correct Launch File](https://aigetpro.com/install-comfyui-windows/#Step_3_Start_ComfyUI_With_the_Correct_Launch_File)
    - [Step 4: Open the Local Web Interface](https://aigetpro.com/install-comfyui-windows/#Step_4_Open_the_Local_Web_Interface)
 * [How to Download and Add Your First AI Model](https://aigetpro.com/install-comfyui-windows/#How_to_Download_and_Add_Your_First_AI_Model)
    - [Understand Checkpoints, LoRAs, and VAEs](https://aigetpro.com/install-comfyui-windows/#Understand_Checkpoints_LoRAs_and_VAEs)
    - [Put the Model in the Correct Folder](https://aigetpro.com/install-comfyui-windows/#Put_the_Model_in_the_Correct_Folder)
 * [How to Generate Your First Image in ComfyUI](https://aigetpro.com/install-comfyui-windows/#How_to_Generate_Your_First_Image_in_ComfyUI)
    - [Load a Compatible Workflow](https://aigetpro.com/install-comfyui-windows/#Load_a_Compatible_Workflow)
    - [Enter a Prompt and Run the Workflow](https://aigetpro.com/install-comfyui-windows/#Enter_a_Prompt_and_Run_the_Workflow)
 * [Common ComfyUI Installation Problems on Windows and How to Fix Them](https://aigetpro.com/install-comfyui-windows/#Common_ComfyUI_Installation_Problems_on_Windows_and_How_to_Fix_Them)
    - [ComfyUI Won’t Start or the Window Closes](https://aigetpro.com/install-comfyui-windows/#ComfyUI_Wont_Start_or_the_Window_Closes)
    - [The Browser Cannot Open 127.0.0.1:8188](https://aigetpro.com/install-comfyui-windows/#The_Browser_Cannot_Open_127001_8188)
    - [The Checkpoint or Model Does Not Appear](https://aigetpro.com/install-comfyui-windows/#The_Checkpoint_or_Model_Does_Not_Appear)
    - [CUDA or GPU Memory Errors Appear](https://aigetpro.com/install-comfyui-windows/#CUDA_or_GPU_Memory_Errors_Appear)
 * [How to Keep Your ComfyUI Installation Organized and Updated](https://aigetpro.com/install-comfyui-windows/#How_to_Keep_Your_ComfyUI_Installation_Organized_and_Updated)
    - [Keep Models and Workflows Organized](https://aigetpro.com/install-comfyui-windows/#Keep_Models_and_Workflows_Organized)
    - [Install Custom Nodes Only When Needed](https://aigetpro.com/install-comfyui-windows/#Install_Custom_Nodes_Only_When_Needed)
    - [Back Up Before Updating](https://aigetpro.com/install-comfyui-windows/#Back_Up_Before_Updating)
 * [Frequently Asked Questions](https://aigetpro.com/install-comfyui-windows/#Frequently_Asked_Questions)
    - [Is ComfyUI free?](https://aigetpro.com/install-comfyui-windows/#Is_ComfyUI_free)
    - [Can I install ComfyUI on Windows 11?](https://aigetpro.com/install-comfyui-windows/#Can_I_install_ComfyUI_on_Windows_11)
    - [Does ComfyUI require Python to be installed separately?](https://aigetpro.com/install-comfyui-windows/#Does_ComfyUI_require_Python_to_be_installed_separately)
    - [Can ComfyUI run without a GPU?](https://aigetpro.com/install-comfyui-windows/#Can_ComfyUI_run_without_a_GPU)
    - [How much disk space should I reserve for ComfyUI?](https://aigetpro.com/install-comfyui-windows/#How_much_disk_space_should_I_reserve_for_ComfyUI)
    - [Can I install ComfyUI on a drive other than C:?](https://aigetpro.com/install-comfyui-windows/#Can_I_install_ComfyUI_on_a_drive_other_than_C)
    - [Can ComfyUI share models with other AI image-generation tools?](https://aigetpro.com/install-comfyui-windows/#Can_ComfyUI_share_models_with_other_AI_image-generation_tools)
    - [Can I use ComfyUI offline?](https://aigetpro.com/install-comfyui-windows/#Can_I_use_ComfyUI_offline)
    - [Are ComfyUI custom nodes safe to install?](https://aigetpro.com/install-comfyui-windows/#Are_ComfyUI_custom_nodes_safe_to_install)
    - [Should beginners use Desktop or Portable?](https://aigetpro.com/install-comfyui-windows/#Should_beginners_use_Desktop_or_Portable)
    - [Why doesn’t my ComfyUI model show up?](https://aigetpro.com/install-comfyui-windows/#Why_doesnt_my_ComfyUI_model_show_up)
    - [What is the ComfyUI local URL?](https://aigetpro.com/install-comfyui-windows/#What_is_the_ComfyUI_local_URL)
 * [Final Recommendation: Get ComfyUI Working Before Adding More Features](https://aigetpro.com/install-comfyui-windows/#Final_Recommendation_Get_ComfyUI_Working_Before_Adding_More_Features)

## ComfyUI Windows Requirements: Quick Answer

ComfyUI Desktop supports [Windows 10 or later](https://docs.comfy.org/installation/desktop/windows)
on x64 and ARM64 systems. It recommends at least [4.85 GB of disk space](https://docs.comfy.org/installation/desktop/overview)
per installation, 8 GB of RAM, and 16 GB of RAM for better performance. A dedicated
GPU is recommended for faster image generation, but ComfyUI can also run on CPU.

## What Is ComfyUI, and What Can You Do With It?

[ComfyUI](https://github.com/comfyanonymous/ComfyUI) is an open-source, node-based
interface for building generative AI workflows. You connect operations, such as 
loading a model, entering a prompt, generating an image, and saving the result, 
to control how an AI task runs. You can use it for [text-to-image generation](https://github.com/comfyanonymous/ComfyUI),
image editing, upscaling, and other supported workflows.

ComfyUI is especially useful when you want more control over the generation process
than a simple image generator provides. If your broader goal is to turn generated
visuals into short-form video, ads, or social content, it can help to_[ compare AI video editing tools](https://aigetpro.com/best-ai-video-editor-comparison/)_
before building a full production workflow.

### How ComfyUI Differs From a Basic AI Image Generator

A simple image generator usually asks you to enter a prompt and click Generate. 
ComfyUI lets you see and change each step (model loading, prompting, sampling, and
saving) rather than hiding them behind one button. A classic text-to-image workflow
may include:

 * **Checkpoint loader:** Loads a compatible AI model.
 * **Text encoders:** Process your positive and, where applicable, negative prompts.
 * **Sampler:** Performs the image-generation process.
 * **VAE decoder:** Converts latent output into an image.
 * **Save Image:** Saves the finished result.

![](https://aigetpro.com/wp-content/uploads/2026/10/image-8-1024x325.png)

Show Image <!– OPTIONAL REAL SCREENSHOT: your own screenshot of the ComfyUI canvas
with the default workflow loaded. Filename: comfyui-default-workflow-canvas.png.
Alt: “ComfyUI default text-to-image workflow open in the browser interface”. –>

Start from a compatible example workflow, then change one node at a time.

### Is ComfyUI Free to Install and Use Locally?

Yes. The core ComfyUI software is [open source](https://github.com/comfyanonymous/ComfyUI/blob/master/LICENSE)
under the GPL-3.0 license, and you can install it locally without purchasing a paid
license for the application itself.

ComfyUI itself is free, but model files, storage, VRAM, and optional cloud services
can still cost money or require a capable PC. Some model files also have their own
license conditions. See the [official ComfyUI website](https://www.comfy.org/download)
for the software and current installation options.

## Check Your Windows PC Before Installing ComfyUI

Before downloading anything, check your operating system, graphics hardware, memory,
and available storage. These determine which installation method and AI model will
work best.

### Which Windows Versions Does ComfyUI Support?

The current ComfyUI Desktop documentation lists [Windows 10 or later](https://docs.comfy.org/installation/desktop/windows),
supporting x64 and ARM64 architectures. A dedicated GPU is [recommended for good performance](https://docs.comfy.org/installation/desktop/windows),
but isn’t an absolute requirement for running the application.

To check your system:

 1. Press **Windows + I** to open Settings.
 2. Select **System → About**.
 3. Find your Windows edition, system type, and installed RAM.
 4. Open Task Manager and select **Performance → GPU** to identify your graphics hardware.

### Do You Need an NVIDIA, AMD, or Intel GPU?

A dedicated GPU is highly recommended if you plan to generate images locally at 
reasonable speeds. The official Portable documentation includes CPU and NVIDIA launch
options, while AMD and Intel support may require separate packages or installation
methods. Don’t download an NVIDIA-specific package simply because an older tutorial
uses it.

| Hardware | What to do | 
| NVIDIA GPU | Choose the appropriate NVIDIA package for your hardware | 
| AMD GPU | Follow the current official AMD Windows instructions | 
| Intel GPU | Follow the current official instructions for Intel hardware | 
| CPU only | Use a CPU-compatible installation, expecting slower generation |

Check the [official Portable Windows guide](https://docs.comfy.org/installation/comfyui_portable_windows)
before selecting a package.

### How Much RAM, VRAM, and Storage Should You Have?

ComfyUI Desktop’s documentation recommends at least [4.85 GB of disk space](https://docs.comfy.org/installation/desktop/overview)
per installation and lists 8 GB of RAM, with 16 GB recommended. The installation
itself isn’t the whole story: model downloads and generated images require additional
space.

There is no single VRAM minimum that guarantees every workflow will run. A workflow
that runs on 8 GB of VRAM may fail on a 4 GB GPU if it uses a larger model, higher
resolution, or a bigger batch size.

Use this checklist before continuing:

 * Identify your GPU and available VRAM.
 * Make sure your graphics drivers are up to date.
 * Reserve enough disk space for the software and models.
 * Decide whether you want Desktop or Portable.
 * Check the requirements of the model you intend to use.

Official reference: [ComfyUI system requirements](https://docs.comfy.org/installation/system_requirements).

## ComfyUI Desktop vs Portable: Which Installation Method Is Best?

Both methods can run ComfyUI locally, but they serve slightly different needs.

![](https://aigetpro.com/wp-content/uploads/2026/10/image-9-1024x463.png)

| Feature | Desktop | Portable | Manual | 
| Beginner-friendly setup | Best starting point | Requires more file handling | Most technical | 
| Python setup | Managed by the application | Includes an embedded environment | You manage dependencies | 
| Installation style | Desktop installer | Download and extract an archive | Set up the environment yourself | 
| Best for | Most new users | Users wanting a self-contained folder | Developers and advanced users |

### Choose ComfyUI Desktop for the Simplest Setup

[ComfyUI Desktop](https://docs.comfy.org/installation/desktop/overview) manages 
installation and launches your ComfyUI instances from a desktop application. It 
also provides an update interface. Desktop handles most Python and dependency setup,
which is why it is the easier first option.

### Choose ComfyUI Portable for a Self-Contained Folder

Portable includes its own [embedded Python environment](https://docs.comfy.org/installation/comfyui_portable_windows),
so you don’t need to install a separate system-wide Python just to run that package.
It is useful if you want everything in one folder you can move, back up, or manage
manually. The supported package still matters, so follow the official instructions.

### When Should You Use Manual Installation?

[Manual installation](https://docs.comfy.org/installation/manual_install) gives 
advanced users more control over Python, dependencies, and development versions.
It also requires more troubleshooting knowledge.

**My recommendation:** Start with Desktop unless you have a specific reason to use
Portable or Manual. You can explore advanced configuration after you have a working
installation.

## How to Install ComfyUI on Windows Using Desktop

This is the recommended method for most beginners.

### Step 1: Download the Official Windows Installer

Go to the [official ComfyUI download page](https://www.comfy.org/download) and select
the Windows Desktop download. Download the installer only from the official ComfyUI
website or its linked official repository. Avoid unofficial repackaged installers.
<!– YOUR OWN SCREENSHOT: the Comfy.org download page with the Windows button visible.
Filename: comfyui-download-page-windows.png. Alt: “ComfyUI official download page
with the Windows Desktop installer button”. –>

### Step 2: Run the Installer

Open the downloaded .exe file and follow the installation prompts. Install it in
a normal user folder with enough free space, such as `D:\ComfyUI` or `C:\Users\YourName\
ComfyUI`. Once installation finishes, launch Comfy Desktop from the Start menu or
desktop shortcut.

### Step 3: Choose a Local Installation

On first launch, Desktop asks how you want to run ComfyUI. Select the option to 
install and run it locally on your own computer, not a cloud instance. Follow the
setup wizard to choose the installation location and available configuration options.
If your GPU is detected, verify that the selected hardware matches your computer.
<!– YOUR OWN SCREENSHOT: the installer GPU / local-install selection screen. Filename:
comfyui-desktop-gpu-selection-screen.png. Alt: “ComfyUI Desktop first-launch screen
for choosing a local installation and GPU”. Installer screens change between versions,
so use your own capture. –>

### Step 4: Finish Setup and Open ComfyUI

Allow the application to finish configuring its local installation. Depending on
the version and selected setup, some components or model files may need to be downloaded.
When setup is complete, open the local ComfyUI instance and check that the interface
loads without an error.

Do not install custom nodes yet. First confirm that the default workflow runs.

### Step 5: Check for Updates

Comfy Desktop includes an [update interface](https://docs.comfy.org/installation/desktop/windows).
Use its built-in update controls rather than following an old tutorial’s commands
without checking whether they apply to your installation. Export your workflows 
and copy your model paths before a major update.

## How to Install ComfyUI Portable on Windows

Use this method if you prefer a self-contained folder or need one of the supported
Portable packages.

### Step 1: Download the Correct Portable Package

Open the [official ComfyUI Portable Windows guide](https://docs.comfy.org/installation/comfyui_portable_windows).
Choose the package that matches your hardware. The current documentation covers 
CPU and NVIDIA launch options, and package variants and requirements can change,
so confirm on the current download page.

### Step 2: Extract the Archive

After downloading, extract the archive into a suitable folder using an archive utility
such as [7-Zip](https://www.7-zip.org/). The extracted folder contains the ComfyUI
application, an embedded Python environment, update scripts, and launch files.

### Step 3: Start ComfyUI With the Correct Launch File

For the standard NVIDIA Portable package, the launch file is [`run_nvidia_gpu.bat`](https://docs.comfy.org/installation/comfyui_portable_windows).
CPU-only mode is also available through `run_cpu.bat`. Double-click the appropriate
file. A terminal window should appear while ComfyUI starts.

### Step 4: Open the Local Web Interface

When the server starts successfully, it normally directs you to [http://127.0.0.1:8188](http://127.0.0.1:8188).
If the browser doesn’t open automatically, enter that address manually. Keep the
terminal window open while using Portable. Closing it stops the running ComfyUI 
process.

## How to Download and Add Your First AI Model

ComfyUI is the workflow tool; the image model is usually a separate download. You
must have a model compatible with your chosen workflow.

### Understand Checkpoints, LoRAs, and VAEs

 * **Checkpoint:** A [checkpoint](https://docs.comfy.org/) is a model file used 
   by a compatible generation workflow.
 * **LoRA:** An additional set of model weights that modifies a compatible model’s
   behavior or style.
 * **VAE:** A component used to encode or decode image representations in supported
   workflows.

A workflow may require one or more of these files. Read its requirements before 
downloading a large model.

### Put the Model in the Correct Folder

For classic checkpoint-based workflows, checkpoint files commonly belong in `ComfyUI/
models/checkpoints/`. Other model architectures may use folders such as `ComfyUI/
models/diffusion_models/`, `ComfyUI/models/text_encoders/`, and `ComfyUI/models/
vae/`. LoRA files commonly go in `ComfyUI/models/loras/`.

![](https://aigetpro.com/wp-content/uploads/2026/10/image-10.png)

The required folders depend on the model and its loader nodes. Follow the model’s
installation instructions rather than moving every file into checkpoints. After 
adding a model, refresh the relevant model selector or restart ComfyUI if it isn’t
detected.

Download models from the official model page or a trusted repository, and check 
the license before using generated outputs commercially.

## How to Generate Your First Image in ComfyUI

Once the installation and model are ready, test the workflow.

### Load a Compatible Workflow

Open a basic text-to-image workflow designed for your chosen model. If the workflow
is already available in ComfyUI, select it; otherwise, download a compatible workflow
from a trusted source. Check that the model loader recognizes the model and that
there are no missing-node warnings.

### Enter a Prompt and Run the Workflow

Try a simple prompt, such as:

> A small wooden cabin beside a lake at sunrise, soft golden light, realistic landscape
> photography.

Enter the prompt into the workflow’s text field. Keep sampler, steps, and resolution
at the workflow defaults for your first image. Click **Queue Prompt** to start generation.

If the workflow completes successfully, your first image should appear in the interface
or output preview. The default output location for many standard installations is
the `output` directory inside the ComfyUI installation, though Desktop-managed installations
may organize output folders differently. Save your working workflow so you can reuse
it later.

A first test image is useful for confirming that the installation works, but real
projects need a clearer purpose. If you plan to create visuals for social media,
ads, or client campaigns, our guide explains how to _[use AI-generated images in marketing](https://aigetpro.com/ai-image-generator-marketing/)_
with a more practical workflow.

![First image generated in ComfyUI after clicking Queue Prompt
](https://aigetpro.
com/wp-content/uploads/2026/10/Create_simple_screenshot_image_bcea511b-1024x572.
jpg)

## Common ComfyUI Installation Problems on Windows and How to Fix Them

Read the error first. Reinstalling rarely fixes a missing model, wrong launch file,
or GPU-driver issue.

| Problem | What to check first | 
| ComfyUI won’t start | Read the terminal or application logs | 
| 127.0.0.1:8188 won’t load | Confirm the server started and the terminal is still open | 
| Model doesn’t appear | Check the model folder, file name, and workflow compatibility | 
| CUDA or GPU error | Check the selected package, driver, and supported hardware | 
| Out-of-memory error | Reduce image dimensions or batch size, or use a suitable lighter model | 
| Workflow has missing nodes | Identify the missing custom nodes and install only the necessary ones |

### ComfyUI Won’t Start or the Window Closes

Start by reading the error message. It may identify a dependency problem, unsupported
GPU configuration, or driver issue. Use the instructions for your installation type,
and avoid copying commands from a tutorial written for a different version or GPU.

### The Browser Cannot Open 127.0.0.1:8188

Check whether the application is still running. For Portable, the terminal window
must remain open. If the server reports a different address or port, use the one
shown in the terminal. If another process is using the port, consult the official
troubleshooting documentation before changing settings.

### The Checkpoint or Model Does Not Appear

Confirm that the file is in the correct directory and compatible with the loaded
workflow. Refresh the relevant model selector or restart the instance if needed.

### CUDA or GPU Memory Errors Appear

Check your graphics drivers and whether you selected the correct package. For memory
errors, try a smaller image size or batch size before reinstalling the software.

For more involved problems, use the [official ComfyUI documentation](https://docs.comfy.org/)
and the [ComfyUI GitHub repository](https://github.com/comfyanonymous/ComfyUI). 
Include the exact error message when looking for help.

## How to Keep Your ComfyUI Installation Organized and Updated

### Keep Models and Workflows Organized

Store compatible model files in their designated folders and keep copies of workflows
you use regularly. If you have multiple installations, the official Portable documentation
explains how to configure [additional model paths](https://docs.comfy.org/installation/comfyui_portable_windows)
to reuse model files.

### Install Custom Nodes Only When Needed

Custom nodes can add useful features, but each one adds another dependency that 
may break after an update. Start with a basic workflow and install only the extensions
required by the workflow you want to use.

### Back Up Before Updating

Export your workflows and copy your model paths before a major update. Desktop and
Portable have different update procedures, so follow the instructions for your specific
installation.

For more guides on open-source software and practical AI setup, explore AiGetPro’s
[Free AI Tools & GitHub Guides](https://aigetpro.com/category/free-ai-tools-github-guides/).

## Frequently Asked Questions

### Is ComfyUI free?

Yes. ComfyUI’s core software is free and open source under GPL-3.0. However, AI 
models, cloud services, and some custom nodes may have separate license terms or
costs.

### Can I install ComfyUI on Windows 11?

Yes. ComfyUI Desktop supports Windows 10 and later, including Windows 11. Your hardware
and chosen model determine which workflows will run comfortably.

### Does ComfyUI require Python to be installed separately?

Not when you use Desktop or the packaged Portable version. Both manage or include
the Python environment required by their respective installation method.

### Can ComfyUI run without a GPU?

Yes, a CPU-only setup is possible, but image generation can be considerably slower.
A compatible GPU is recommended for a smoother local experience.

### How much disk space should I reserve for ComfyUI?

The Desktop documentation recommends at least 4.85 GB per installation. Reserve 
additional space for model downloads, custom nodes, workflows, and generated images.

### Can I install ComfyUI on a drive other than C:?

Yes. Choose a writable location with sufficient space, such as D:\ComfyUI, and keep
track of where your models and output folders are stored.

### Can ComfyUI share models with other AI image-generation tools?

Often yes, where the model formats and configurations are compatible. ComfyUI also
supports additional model paths, which can help avoid duplicate downloads.

### Can I use ComfyUI offline?

Local workflows can run offline after the application, models, and dependencies 
have been downloaded. Model downloads, online features, and certain external services
still require an internet connection.

### Are ComfyUI custom nodes safe to install?

Custom nodes are third-party code and should be treated carefully. Prefer trusted
sources, check compatibility, and avoid installing extensions you don’t need.

### Should beginners use Desktop or Portable?

Beginners should usually start with ComfyUI Desktop. Portable is better once you
want a self-contained folder, manual control, or a specific GPU package.

### Why doesn’t my ComfyUI model show up?

Check that the file is in the correct model folder, compatible with the workflow,
and recognized by the loader node. Refresh the model list or restart ComfyUI.

### What is the ComfyUI local URL?

ComfyUI commonly runs at [http://127.0.0.1:8188](http://127.0.0.1:8188). If it uses
a different address or port, use the one shown in the terminal or application.

## Final Recommendation: Get ComfyUI Working Before Adding More Features

The easiest way to get started is to install ComfyUI Desktop, choose a compatible
local setup, load a supported model, and generate one test image. You can move to
Portable later if you need a self-contained folder or more control over your installation.

If something fails, check the actual error before changing dependencies or reinstalling
the whole application. Once one basic image generates successfully, adding models
and custom nodes becomes much easier.

When you’re comfortable with ComfyUI, the next useful step is learning where model
files come from and how they connect to workflows. Our beginner guide explains how
to _[use Hugging Face models with ComfyUI](https://aigetpro.com/use-hugging-face-models-comfyui/)_,
including checkpoints, LoRAs, and compatible workflow setup.

![Arsalan Bilal](https://secure.gravatar.com/avatar/a6788a27e16746ea9ec926028c59cc099b0d6a66f25a3020cddb276202aacb3f?
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[Arsalan Bilal](https://aigetpro.com/author/arsalanbilalansarigmail-com/)

Arsalan is an independent AI tools researcher and
 digital publisher. He tests free
and paid AI tools, tracks the remote AI job market, and writes practical guides 
for professionals who want to work smarter with AI.

Now focused on
 AiGetPro — a resource for honest AI tool comparisons, remote AI 
job guides, and free GitHub tool discoveries.