Tried to update comfyui, didn't work correctly, now comfyui won't run

[Exxb]

First of all, comfyui isn't running for me at all anymore. This is what I did, and the errors I'm having now:

I'm running a portable installation of comfyui, which if I understand correctly runs python from the python_embedded folder rather than a windows C: drive python installation directory. I tried to update comfy from "update_comfyui.bat" in the ComfyUI_windows_portable\update folder, per the instructions here: https://docs.comfy.org/installation/update_comfyui#comfyui-portable-windows

However, it said something about me needing to update pip. I tried running update_comfyui_and_python_dependencies.bat, but it seems that might have messed things up for me more. At any rate, I'm having problems now, and I don't know how to fix it.

I tried following instructions to manually update pip, but I don't know if I understand how to install from the command line correctly. I opened python.exe in the ComfyUI_windows_portable\python_embeded folder to try to install manually, per the page I linked, then typed "-m pip install -r ComfyUI\requirements.txt" to update manually. I also tried "-m pip install --upgrade pip", per another screen I got when trying to update my install. However, when I type these commands, I just get the response "SyntaxError: invalid syntax".

When I try to run ComfyUI_windows_portable\run_nvidia_gpu.bat now, this is the output I get:

D:\ComfyUI_windows_portable>.\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build
[START] Security scan
[DONE] Security scan

ComfyUI-Manager: installing dependencies done.

** ComfyUI startup time: 2025-07-30 14:38:19.416
** Platform: Windows
** Python version: 3.11.9 (tags/v3.11.9:de54cf5, Apr 2 2024, 10:12:12) [MSC v.1938 64 bit (AMD64)]
** Python executable: D:\ComfyUI_windows_portable\python_embeded\python.exe
** ComfyUI Path: D:\ComfyUI_windows_portable\ComfyUI
** ComfyUI Base Folder Path: D:\ComfyUI_windows_portable\ComfyUI
** User directory: D:\ComfyUI_windows_portable\ComfyUI\user
** ComfyUI-Manager config path: D:\ComfyUI_windows_portable\ComfyUI\user\default\ComfyUI-Manager\config.ini
** Log path: D:\ComfyUI_windows_portable\ComfyUI\user\comfyui.log
WARNING: The script f2py.exe is installed in 'D:\ComfyUI_windows_portable\python_embeded\Scripts' which is not on PATH.
Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
blendmodes 2025 requires numpy>=2.0.2, but you have numpy 1.26.4 which is incompatible.
inference-gpu 0.9.13 requires numpy<=1.25.2, but you have numpy 1.26.4 which is incompatible.
inference-gpu 0.9.13 requires onnxruntime-gpu<=1.15.1, but you have onnxruntime-gpu 1.18.0 which is incompatible.
inference-gpu 0.9.13 requires pillow<11.0, but you have pillow 11.3.0 which is incompatible.
mediapipe 0.10.21 requires protobuf<5,>=4.25.3, but you have protobuf 5.29.4 which is incompatible.

[notice] A new release of pip is available: 25.0.1 -> 25.1.1
[notice] To update, run: python.exe -m pip install --upgrade pip
[ComfyUI-Manager] 'numpy' dependency were fixed

Prestartup times for custom nodes:
0.0 seconds: D:\ComfyUI_windows_portable\ComfyUI\custom_nodes\rgthree-comfy
0.0 seconds: D:\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Easy-Use
9.3 seconds: D:\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Manager

Checkpoint files will always be loaded safely.
Traceback (most recent call last):
File "D:\ComfyUI_windows_portable\ComfyUI\main.py", line 147, in
import execution
File "D:\ComfyUI_windows_portable\ComfyUI\execution.py", line 15, in
import comfy.model_management
File "D:\ComfyUI_windows_portable\ComfyUI\comfy\model_management.py", line 233, in
total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
^^^^^^^^^^^^^^^^^^
File "D:\ComfyUI_windows_portable\ComfyUI\comfy\model_management.py", line 183, in get_torch_device
return torch.device(torch.cuda.current_device())
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\cuda_init_.py", line 1026, in current_device
lazy_init()
File "D:\ComfyUI_windows_portable\python_embeded\Lib\site-packages\torch\cuda_init.py", line 363, in _lazy_init
raise AssertionError("Torch not compiled with CUDA enabled")
AssertionError: Torch not compiled with CUDA enabled

D:\ComfyUI_windows_portable>pause
Press any key to continue . . .

How am I supposed to use the command line correctly, and what do I have to do to get comfy working again?

[comfyui-wiki]

The core reason is that after you run update_comfyui_and_python_dependencies.bat, torch may also have been updated, and the updated version is not compatible with your CUDA

raise AssertionError("Torch not compiled with CUDA enabled")
AssertionError: Torch not compiled with CUDA enabled

1. Backup the python_embeded folder before trying to fix this issue. If it fails, you can still restore it and try another method.
2. Use this command to check which version of CUDA you have installed.

nvcc --version

3. Search for the compatible torch version. You can find them here: https://pytorch.org/get-started/locally/
4. Install the compatible torch, for example:

D:\ComfyUI_windows_portable>.\python_embeded\python.exe -m pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cuxxxx # use the correct command

Let me know if this works. I'm currently using a MacBook, so I don't know if it's right.

[Exxb]

Thanks for the help, I just ended up downloading a new instance of the Comfy portable version and deleted the old one instead, but I'll keep in mind the info you gave next time I update.