# Installetion failed

**URL:** <https://forum.comfy.org/t/installetion-failed/4534>\
**Category:** Windows\
**Tags:** issue, install\
**Created:** [June 22, 2026, 6:49pm UTC](https://forum.comfy.org/t/installetion-failed/4534 "2026-06-22T18:49:15Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Spinaster](https://avatars.discourse-cdn.com/v4/letter/s/e495f1/32.png) [@Spinaster](https://forum.comfy.org/u/Spinaster)\
**Post date:** [June 22, 2026, 6:49pm UTC](https://forum.comfy.org/t/installetion-failed/4534/1 "2026-06-22T18:49:15Z")

</div>

Hi,  
I’m trying to install the latest version on Windows, AMD Ryzen 7 7735HS with Radeon Graphics.

Here is the log

“C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Scripts\python.exe” -s ComfyUI\main.py --feature-flag show\_signin\_button=true --enable-manager --extra-model-paths-config “C:\Users\NMD Server\AppData\Roaming\Comfy Desktop\shared\_model\_paths.yaml” --input-directory “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\input” --output-directory “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\output”

e[32m[INFO]e[0m setup plugin alembic.autogenerate.schemas  
e[32m[INFO]e[0m setup plugin alembic.autogenerate.tables  
e[32m[INFO]e[0m setup plugin alembic.autogenerate.types  
e[32m[INFO]e[0m setup plugin alembic.autogenerate.constraints  
e[32m[INFO]e[0m setup plugin alembic.autogenerate.defaults  
e[32m[INFO]e[0m setup plugin alembic.autogenerate.comments  
e[32m[INFO]e[0m Adding extra search path checkpoints C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\checkpoints  
e[32m[INFO]e[0m Adding extra search path classifiers C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\classifiers  
e[32m[INFO]e[0m Adding extra search path clip\_vision C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\clip\_vision  
e[32m[INFO]e[0m Adding extra search path configs C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\configs  
e[32m[INFO]e[0m Adding extra search path controlnet C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\controlnet  
e[32m[INFO]e[0m Adding extra search path controlnet C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\t2i\_adapter  
e[32m[INFO]e[0m Adding extra search path diffusers C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\diffusers  
e[32m[INFO]e[0m Adding extra search path diffusion\_models C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\diffusion\_models  
e[32m[INFO]e[0m Adding extra search path embeddings C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\embeddings  
e[32m[INFO]e[0m Adding extra search path gligen C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\gligen  
e[32m[INFO]e[0m Adding extra search path hypernetworks C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\hypernetworks  
e[32m[INFO]e[0m Adding extra search path latent\_upscale\_models C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\latent\_upscale\_models  
e[32m[INFO]e[0m Adding extra search path loras C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\loras  
e[32m[INFO]e[0m Adding extra search path model\_patches C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\model\_patches  
e[32m[INFO]e[0m Adding extra search path audio\_encoders C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\audio\_encoders  
e[32m[INFO]e[0m Adding extra search path photomaker C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\photomaker  
e[32m[INFO]e[0m Adding extra search path style\_models C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\style\_models  
e[32m[INFO]e[0m Adding extra search path text\_encoders C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\text\_encoders  
e[32m[INFO]e[0m Adding extra search path upscale\_models C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\upscale\_models  
e[32m[INFO]e[0m Adding extra search path background\_removal C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\background\_removal  
e[32m[INFO]e[0m Adding extra search path frame\_interpolation C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\frame\_interpolation  
e[32m[INFO]e[0m Adding extra search path geometry\_estimation C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\geometry\_estimation  
e[32m[INFO]e[0m Adding extra search path optical\_flow C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\optical\_flow  
e[32m[INFO]e[0m Adding extra search path detection C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\detection  
e[32m[INFO]e[0m Adding extra search path vae C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\vae  
e[32m[INFO]e[0m Adding extra search path vae\_approx C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\vae\_approx  
e[32m[INFO]e[0m Adding extra search path clip C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\clip  
e[32m[INFO]e[0m Adding extra search path unet C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\models\unet  
e[32m[INFO]e[0m Setting output directory to: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\output  
e[32m[INFO]e[0m Setting input directory to: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Shared\input  
[START] Security scan  
[DONE] Security scan  
\*\* ComfyUI startup time: 2026-06-22 20:38:13.391  
\*\* Platform: Windows  
\*\* Python version: 3.12.12 (main, Feb 12 2026, 00:40:26) [MSC v.1944 64 bit (AMD64)]  
\*\* Python executable: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Scripts\python.exe  
\*\* ComfyUI Path: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI  
\*\* ComfyUI Base Folder Path: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI  
\*\* User directory: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\user  
\*\* ComfyUI-Manager config path: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\user\_\_manager\config.ini  
\*\* Log path: C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\user\comfyui.log  
e[32m[INFO]e[0m [PRE] ComfyUI-Manager  
[WARNING] failed to run offload-arch: binary not found.  
Windows fatal exception: access violation

Stack (most recent call first):  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Lib\site-packages\torch\cuda\__init_\_.py”, line 182 in is\_available  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Lib\site-packages\comfy\_kitchen\backends\cuda\__init_\_.py”, line 1138 in _register  
File "C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Lib\site-packages\comfy\_kitchen\backends\cuda\_init_.py", line 1149 in  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 999 in exec\_module  
File “”, line 935 in \_load\_unlocked  
File “”, line 1331 in \_find\_and\_load\_unlocked  
File “”, line 1360 in \_find\_and\_load  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 1415 in _handle\_fromlist  
File "C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI.venv\Lib\site-packages\comfy\_kitchen\_init_.py", line 3 in  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 999 in exec\_module  
File “”, line 935 in \_load\_unlocked  
File “”, line 1331 in \_find\_and\_load\_unlocked  
File “”, line 1360 in \_find\_and\_load  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\comfy\quant\_ops.py”, line 7 in  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 999 in exec\_module  
File “”, line 935 in \_load\_unlocked  
File “”, line 1331 in \_find\_and\_load\_unlocked  
File “”, line 1360 in \_find\_and\_load  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\comfy\memory\_management.py”, line 8 in  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 999 in exec\_module  
File “”, line 935 in \_load\_unlocked  
File “”, line 1331 in \_find\_and\_load\_unlocked  
File “”, line 1360 in \_find\_and\_load  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\comfy\utils.py”, line 25 in  
File “”, line 488 in \_call\_with\_frames\_removed  
File “”, line 999 in exec\_module  
File “”, line 935 in \_load\_unlocked  
File “”, line 1331 in \_find\_and\_load\_unlocked  
File “”, line 1360 in \_find\_and\_load  
File “C:\Users\NMD Server\AppData\Local\Comfy-Desktop\ComfyUI-Installs\ComfyUI - 02\ComfyUI\main.py”, line 221 in

Any advice?

Thank you.