# Repeated errors occurred when installing Python. WIin10 **URL:** \ **Category:** Windows\ **Tags:** issue, install\ **Created:** [August 10, 2025, 7:33am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593 "2025-08-10T07:33:32Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:33am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/1 "2025-08-10T07:33:32Z")
Repeated errors occurred when installing Python. 当你运行一个故障排除命令时，任何输出都会在这里显示。Windows PowerShell 版权所有 (C) Microsoft Corporation。保留所有权利。 尝试新的跨平台 PowerShell [Install PowerShell on Windows, Linux, and macOS - PowerShell | Microsoft Learn](https://aka.ms/pscore6) PS C:\ComfyUI\> & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron resources\uv\win\uv.exe” “pip” “install” “torch” “torchvision” “torchaudio” "–i Resolved 14 packages in 4.95s Prepared 14 packages in 9m 39s Installed 14 packages in 29.84s - filelock==3.13.1 - fsspec==2024.6.1 - jinja2==3.1.4 - markupsafe==2.1.5 - mpmath==1.3.0 - networkx==3.3 - numpy==2.1.2 - pillow==11.0.0 - setuptools==70.2.0 - sympy==1.13.3 Windows PowerShell 版权所有 (C) Microsoft Corporation。保留所有权利。 尝试新的跨平台 PowerShell [Install PowerShell on Windows, Linux, and macOS - PowerShell | Microsoft Learn](https://aka.ms/pscore6) PS C:\ComfyUI\> & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron resources\uv\win\uv.exe” “pip” “install” “torch” “torchvision” “torchaudio” "–i Resolved 14 packages in 4.17s Prepared 1 package in 8m 42s Installed 14 packages in 30.50s - filelock==3.13.1 - fsspec==2024.6.1 - jinja2==3.1.4 - markupsafe==2.1.5 - mpmath==1.3.0 - networkx==3.3 - numpy==2.1.2 - pillow==11.0.0 - setuptools==70.2.0 - torch==2.8.0+cu128 - torchaudio==2.8.0+cu128 - torchvision==0.23.0+cu128 - typing-extensions==4.12.2 PS C:\ComfyUI\> echo “\_-end-1754810020873:?” \*-end-1754810020873:True PS C:\\ComfyUI\> & “C:\\Users\\new\\AppData\\Local\\Programs@comfyorgcomfyui-electron resources\\uv\\win\\uv.exe” “pip” “install” “-r” “C:\\Users\\new\\AppData\\Local\\Progra ms@comfyorgcomfyui-electron\\resources\\ComfyUI\\requirements.txt” “–index-url” " https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple" ⠹ comfyui-workflow-templates==0.1.51 error: Failed to unzip wheel: tqdm-4.67.1-py3-none-any.whl Caused by: an upstream reader returned an error: io error occurred: HTTP statu s client error (403 Forbidden) for url (https://mirrors.tuna.tsinghua.edu.cn/pyp i/web/packages/d0/30/dc54f88dd4a2b5dc8a0279bdd7270e735851848b762aeb1c1184ed1f6b1 4/tqdm-4.67.1-py3-none-any.whl) Caused by: io error occurred: HTTP status client error (403 Forbidden) for url (https://mirrors.tuna.tsinghua.edu.cn/pypi/web/packages/d0/30/dc54f88dd4a2b5dc8 a0279bdd7270e735851848b762aeb1c1184ed1f6b14/tqdm-4.67.1-py3-none-any.whl) Caused by: HTTP status client error (403 Forbidden) for url (https://mirrors.t una.tsinghua.edu.cn/pypi/web/packages/d0/30/dc54f88dd4a2b5dc8a0279bdd7270e735851 848b762aeb1c1184ed1f6b14/tqdm-4.67.1-py3-none-any.whl) PS C:\\ComfyUI\> echo "\*-end-1754810579900:?" \_-end-1754810579900:False ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:39am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/2 "2025-08-10T07:39:52Z")
A new user can upload files. ☹ ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:41am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/3 "2025-08-10T07:41:01Z")
[2025-08-10 00:43:19.821] [info] Installed 14 packages in 28.46s - filelock==3.13.1 - fsspec==2024.6.1 - jinja2==3.1.4 - markupsafe==2.1.5 [2025-08-10 00:43:19.836] [info] - mpmath==1.3.0 - networkx==3.3 - numpy==2.1.2 [2025-08-10 00:43:19.849] [info] - pillow==11.0.0 - setuptools==70.2.0 - sympy==1.13.3 [2025-08-10 00:43:19.851] [info] [2025-08-10 00:43:19.855] [info] + torch==2.8.0+cu128 [2025-08-10 00:43:19.861] [info] - torchaudio==2.8.0+cu128 [2025-08-10 00:43:19.866] [info] - torchvision==0.23.0 [2025-08-10 00:43:19.867] [info] +cu128 [2025-08-10 00:43:19.873] [info] - typing-extensions==4.12.2 [2025-08-10 00:43:19.881] [info] [2025-08-10 00:43:19.910] [info] PS C:\ComfyUI\> [2025-08-10 00:43:19.924] [info] PS C:\ComfyUI\> echo “\_-end-1754756440335:$?” \_-end-1754756440335:False PS C:\ComfyUI\> & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron resources\uv\win\uv.exe” “pip” “install” “torch” “torchvision” “torchaudio” “–i ndex-url” “[https://download.pytorch.org/whl/cu128”](https://download.pytorch.org/whl/cu128%E2%80%9D) Resolved 14 packages in 4.81s Prepared 14 packages in 22m 02s Installed 14 packages in 28.46s - filelock==3.13.1 - fsspec==2024.6.1 - jinja2==3.1.4 - markupsafe==2.1.5 - mpmath==1.3.0 - networkx==3.3 - numpy==2.1.2 - pillow==11.0.0 - setuptools==70.2.0 - sympy==1.13.3 - torch==2.8.0+cu128 - torchaudio==2.8.0+cu128 - torchvision==0.23.0+cu128 - typing-extensions==4.12.2 PS C:\ComfyUI\> echo “\_-end-1754756443372:$?” \_-end-1754756443372:True ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:42am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/4 "2025-08-10T07:42:58Z")
[2025-08-10 00:43:19.926] [info] Installing ComfyUI requirements from C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron\resources\ComfyUI\requirements.txt [2025-08-10 00:43:19.927] [info] Running uv command: & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron\resources\uv\win\uv.exe” “pip” “install” “-r” “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron\resources\ComfyUI\requirements.txt” “–index-url” “[https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple”](https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple%E2%80%9D) [2025-08-10 00:43:19.929] [info] [2025-08-10 00:43:19.940] [info] PS C:\ComfyUI\> [2025-08-10 00:43:19.994] [info] [2025-08-10 00:43:20.015] [info] \> & "C:\Users\new [2025-08-10 00:43:20.021] [info] \> & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron [2025-08-10 00:43:20.022] [info] resources\uv\win\uv.exe” “pip” “install” “-r” “C:\Users\new\AppData\Local\Progra ms@comfyorgcomfyui-electron\resources\ComfyUI\requirements.txt” “–index-url” " [2025-08-10 00:43:20.030] [info] Resolved 14 packages in 4.81s Prepared 14 packages in 22m 02s ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:44am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/5 "2025-08-10T07:44:27Z")
Installed 14 packages in 28.46s - filelock==3.13.1 - fsspec==2024.6.1 - jinja2==3.1.4 - markupsafe==2.1.5 - mpmath==1.3.0 - networkx==3.3 - numpy==2.1.2 - pillow==11.0.0 - setuptools==70.2.0 - sympy==1.13.3 - torch==2.8.0+cu128 - torchaudio==2.8.0+cu128 - torchvision==0.23.0+cu128 - typing-extensions==4.12.2 PS C:\ComfyUI\> echo “\_-end-1754756443372:$?” \_-end-1754756443372:True PS C:\ComfyUI\> & “C:\Users\new\AppData\Local\Programs@comfyorgcomfyui-electron resources\uv\win\uv.exe” “pip” “install” “-r” “C:\Users\new\AppData\Local\Progra ms@comfyorgcomfyui-electron\resources\ComfyUI\requirements.txt” “–index-url” " [https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple](https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple)" [2025-08-10 00:43:20.164] [info] ⠋ Resolving dependencies… [2025-08-10 00:43:20.180] [info] ⠙ Resolving dependencies… [2025-08-10 00:43:20.376] [info] ⠹ Resolving dependencies… [2025-08-10 00:43:20.472] [info] ⠹ comfyui-workflow-templates==0.1.35 [2025-08-10 00:43:20.588] [info] ⠸ comfyui-workflow-templates==0.1.35 [2025-08-10 00:43:20.779] [info] [2025-08-10 00:43:20.781] [info] error: Failed to unzip wheel: transformers-4.55.0-py3-none-any.whl [2025-08-10 00:43:20.782] [info] ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:47am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/6 "2025-08-10T07:47:46Z")
![捕获](https://canada1.discourse-cdn.com/flex009/uploads/comfyui1/original/1X/530d777bb53e0d5f322409d0b5832f01b5593699.jpeg) ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 7:48am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/7 "2025-08-10T07:48:40Z")
![捕获2](https://canada1.discourse-cdn.com/flex009/uploads/comfyui1/original/1X/c84d12abdf175b8f498f95bc953590627b70eb06.jpeg) ---
**Author:** ![Arunderan](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@Arunderan](https://forum.comfy.org/u/Arunderan)\ **Post date:** [August 10, 2025, 10:48am UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/8 "2025-08-10T10:48:20Z")
Question, why do you install Python? Comfy runs in an venv, and comes usually with everything needed. ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 10, 2025, 3:20pm UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/9 "2025-08-10T15:20:48Z")
![捕获3](https://canada1.discourse-cdn.com/flex009/uploads/comfyui1/original/1X/f4ec0378edf4147599f85527188cc6943d24b609.jpeg)I don’t know why. It just errors repeatedly when I try to install Comfyui. What’s even stranger is that I installed Python separately, but it seems that Comfyui didn’t detect it. ---
**Author:** ![Arunderan](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@Arunderan](https://forum.comfy.org/u/Arunderan)\ **Post date:** [August 10, 2025, 4:30pm UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/10 "2025-08-10T16:30:56Z")
That’s the standalone, right? I would suggest to install the portable version instead. The global python installation at your system has nothing to do with the python installation that comes with comfyui. ComfyUI runs in a virtual environment. That’s two independent things. DON’T install python in Comfyui. You will break it. And that’s most probably what already happened. Note that i am just a user like you. Maybe one of the devs can tell you more exact what is borked here. Kind regards Arunderan ---
**Author:** ![SpaceSheep](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SpaceSheep](https://forum.comfy.org/u/SpaceSheep)\ **Post date:** [August 11, 2025, 12:22pm UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/11 "2025-08-11T12:22:21Z")
Thank you very much! It seems that this is the only option. ---
**Author:** ![saurabh121](https://avatars.discourse-cdn.com/v4/letter/s/ebca7d/32.png) [@saurabh121](https://forum.comfy.org/u/saurabh121)\ **Post date:** [August 17, 2025, 6:20pm UTC](https://forum.comfy.org/t/repeated-errors-occurred-when-installing-python-wiin10/3593/12 "2025-08-17T18:20:03Z")
You can delete the “uv“ folder from (C:\Users\userName\AppData\Roaming\) and reinstall comfyUI