# Unable to start ComfyUI Desktop v0.4.47

**URL:** <https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553>\
**Category:** Windows\
**Tags:** issue, starting-comfyui\
**Created:** [May 10, 2025, 1:55am UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553 "2025-05-10T01:55:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Arthurknapp](https://avatars.discourse-cdn.com/v4/letter/a/b5ac83/32.png) [@Arthurknapp](https://forum.comfy.org/u/Arthurknapp)\
**Post date:** [May 10, 2025, 1:55am UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553/1 "2025-05-10T01:55:52Z")

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![Screenshot_1](https://canada1.discourse-cdn.com/flex009/uploads/comfyui1/original/1X/4ae09097f762aa98ad6977915eebc7e0ce70d851.png)  
someone can help me?

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**Author:** ![fin14](https://avatars.discourse-cdn.com/v4/letter/f/0ea827/32.png) [@fin14](https://forum.comfy.org/u/fin14)\
**Post date:** [May 13, 2025, 4:48pm UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553/2 "2025-05-13T16:48:34Z")

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I have the same issue, any help would be great.

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**Author:** ![Arthurknapp](https://avatars.discourse-cdn.com/v4/letter/a/b5ac83/32.png) [@Arthurknapp](https://forum.comfy.org/u/Arthurknapp)\
**Post date:** [May 13, 2025, 9:29pm UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553/3 "2025-05-13T21:29:56Z")

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From what I understand, the problem is using the desktop version of comfyui, I believe it is not yet optimized, I tried all kinds of solutions, in the end what worked was deleting everything from comfyui on my PC and then downloading it again, but not the desktop version, the version present on github, sometimes some errors still occur, but just ask for help from chatGPT or Grok and they will find the solution.

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**Author:** ![XingYang\_lc](https://avatars.discourse-cdn.com/v4/letter/x/6a8cbe/32.png) [@XingYang\_lc](https://forum.comfy.org/u/XingYang_lc)\
**Post date:** [August 11, 2025, 8:11am UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553/4 "2025-08-11T08:11:58Z")

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Thank you for your help.It seems pretty easy.

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<div class="post-metadata">

**Author:** ![IceB2](https://avatars.discourse-cdn.com/v4/letter/i/bbe5ce/32.png) [@IceB2](https://forum.comfy.org/u/IceB2)\
**Post date:** [August 12, 2025, 9:53am UTC](https://forum.comfy.org/t/unable-to-start-comfyui-desktop-v0-4-47/2553/6 "2025-08-12T09:53:28Z")

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From the screenshot, it seems the pytorch version you installed is not compatible with your CUDA version. You can check on the official website for installing the right version.

You should first check if CUDA is installed, or if installed, its version by using the following command in Command Terminal (cmd):

```auto
nvcc --version

```

If CUDA is installed correctly, you should see the version of the CUDA Toolkit that is installed. Once you’ve obtained the CUDA version, you can go [here](https://pytorch.org/get-started/locally/) to install a compatible pytorch version.