installation/comfyui_portable_windows

[giscus[bot]]

installation/comfyui_portable_windows

This tutorial will guide you on how to download and start using ComfyUI Portable and run the corresponding programs

https://docs.comfy.org/installation/comfyui_portable_windows

[Sunnerick]

Where can i download comfyui portable windows, with python_embeded 3.10.11 ?

[comfyui-wiki]

Right now, the default workflow is built with python3.13, so you might need to create one yourself. But I'm not good at this. I think you can fork the ComfyUI repo, change the version in the workflow, and trigger the release workflow on your forked repo.

[Mark-Chris007]

Not sure If this helps you. It helped me. I unistalled Python 3.10.11 on my Windows and reinstalled Python on Windows with the Python version that run embeded on my ComfyUI. Thus avoiding constant blue screens. Matching Python installations worked wonders.

[MrNonAir]

"At this point, your ComfyUI service has started. Normally, ComfyUI will automatically open your default browser and navigate to http://127.0.0.1:8188. If it doesn’t open automatically, please manually open your browser and visit this address."

Is there a way to tell ComfyUI to NOT open the default browser. Let´s say, default is Firefox because of... reasons, but i want ComfyUI to run in Chrome. Thx

[cul8rmom1]

Is there a way to get the terminal window to show up in the comfyui interface with the portable version? It shows up in the full version but it spreads things all over and the portable is easier to manage. Thanks.

[comfyui-wiki]

Yes, you can open the log panel through the left sidebar

[BennyTramell]

What are the directions for installing the frontend? They are not on the git page. Specifically, where to place.

[comfyui-wiki]

You don't need to install the frontend. The frontend is part of the core dependency, https://github.com/comfyanonymous/ComfyUI/blob/master/requirements.txt#L1

[MiVa2024]

After installation portable if I run the "update_comfyui.bat" My comfyui don't work and the console show this message "C:\temp\ComfyUI_windows_portable>.\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --fast fp16_accumulation
[START] Security scan
[DONE] Security scan

ComfyUI-Manager: installing dependencies done.

** ComfyUI startup time: 2025-12-06 16:49:31.437
** Platform: Windows
** Python version: 3.13.6 (tags/v3.13.6:4e66535, Aug 6 2025, 14:36:00) [MSC v.1944 64 bit (AMD64)]
** Python executable: C:\temp\ComfyUI_windows_portable\python_embeded\python.exe
** ComfyUI Path: C:\temp\ComfyUI_windows_portable\ComfyUI
** ComfyUI Base Folder Path: C:\temp\ComfyUI_windows_portable\ComfyUI
** User directory: C:\temp\ComfyUI_windows_portable\ComfyUI\user
** ComfyUI-Manager config path: C:\temp\ComfyUI_windows_portable\ComfyUI\user__manager\config.ini
** Log path: C:\temp\ComfyUI_windows_portable\ComfyUI\user\comfyui.log

Prestartup times for custom nodes:
0.0 seconds: C:\temp\ComfyUI_windows_portable\ComfyUI\custom_nodes\rgthree-comfy
0.0 seconds: C:\temp\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-easy-use
3.3 seconds: C:\temp\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-manager

C:\temp\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\cuda_init_.py:63: FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you.
import pynvml # type: ignore[import]
Checkpoint files will always be loaded safely.
Traceback (most recent call last):
File "C:\temp\ComfyUI_windows_portable\ComfyUI\main.py", line 149, in
import execution
File "C:\temp\ComfyUI_windows_portable\ComfyUI\execution.py", line 15, in
import comfy.model_management
File "C:\temp\ComfyUI_windows_portable\ComfyUI\comfy\model_management.py", line 238, in
total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
~~~~~~~~~~~~~~~~^^
File "C:\temp\ComfyUI_windows_portable\ComfyUI\comfy\model_management.py", line 188, in get_torch_device
return torch.device(torch.cuda.current_device())
~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "C:\temp\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\cuda_init_.py", line 1069, in current_device
lazy_init()
~~~~~~~~~~^^
File "C:\temp\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\cuda_init.py", line 403, in _lazy_init
raise AssertionError("Torch not compiled with CUDA enabled")
AssertionError: Torch not compiled with CUDA enabled

C:\temp\ComfyUI_windows_portable>pause
Premere un tasto per continuare . . ." And this is the end. Can you help me? Thanks

[comfyui-wiki]

Are you using a 50-series GPU?

AssertionError: Torch not compiled with CUDA enabled
Here is the reason why it failed.

Run the nvidia-smi in the terminal to see which CUDA version is compatible with your GPU

There are also some alternative portable versions https://github.com/comfyanonymous/ComfyUI?tab=readme-ov-file#alternative-downloads

[GaBe2856]

After installing and running run_cpu.bat, this error is returned.
Traceback (most recent call last):
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\numpy_core_init_.py", line 22, in
from . import multiarray
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\numpy_core\multiarray.py", line 11, in
from . import _multiarray_umath, overrides
ImportError: DLL load failed while importing _multiarray_umath: Routine di inizializzazione della libreria di collegamento dinamico (DLL) non riuscita.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\ComfyUI\main.py", line 176, in
import comfy.utils
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\ComfyUI\comfy\utils.py", line 20, in
import torch
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch_init_.py", line 1894, in
from torch import storage as storage # usort: skip
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\storage.py", line 27, in
import numpy as np
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\numpy_init_.py", line 125, in
from numpy.config import show_config
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\numpy_config_.py", line 4, in
from numpy._core.multiarray_umath import (
...<3 lines>...
)
File "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\Lib\site-packages\numpy_core_init.py", line 83, in
raise ImportError(msg) from exc
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy C-extensions failed. This error can happen for
many reasons, often due to issues with your setup or how NumPy was
installed.

We have compiled some common reasons and troubleshooting tips at:

https://numpy.org/devdocs/user/troubleshooting-importerror.html

Please note and check the following:

• The Python version is: Python 3.13 from "C:\Users\Asus\Downloads\ComfyUI_windows_portable\python_embeded\python.exe"
• The NumPy version is: "2.4.1"

and make sure that they are the versions you expect.

Please carefully study the information and documentation linked above.
This is unlikely to be a NumPy issue but will be caused by a bad install
or environment on your machine.

Original error was: DLL load failed while importing _multiarray_umath: Routine di inizializzazione della libreria di collegamento dinamico (DLL) non riuscita.