i download comfyui and then it just never started. im on a windows pc with an AMD graphics card
Here are the logs
comfyui.log
[2026-03-29 21:57:32.453] [info] comfy-aimdo failed to load: Could not find module ‘C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\comfy_aimdo\aimdo.dll’ (or one of its dependencies). Try using the full path with constructor syntax.
NOTE: comfy-aimdo is currently only support for Nvidia GPUs
[2026-03-29 21:57:32.639] [info] Adding extra search path custom_nodes C:\Users\bdsim\Documents\ComfyUI\custom_nodes
Adding extra search path download_model_base C:\Users\bdsim\Documents\ComfyUI\models
[2026-03-29 21:57:32.640] [info] Adding extra search path custom_nodes C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\custom_nodes
Setting output directory to: C:\Users\bdsim\Documents\ComfyUI\output
Setting input directory to: C:\Users\bdsim\Documents\ComfyUI\input
Setting user directory to: C:\Users\bdsim\Documents\ComfyUI\user
[2026-03-29 21:57:32.747] [error] C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\requests_init_.py:113: RequestsDependencyWarning: urllib3 (2.6.3) or chardet (7.2.0)/charset_normalizer (3.4.6) doesn’t match a supported version!
warnings.warn(
[2026-03-29 21:57:34.002] [info] [START] Security scan
[DONE] Security scan
** ComfyUI startup time:
[2026-03-29 21:57:34.003] [info] 2026-03-29 21:57:34.002
** Platform: Windows
** Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
** Python executable: C:\Users\bdsim\Documents\ComfyUI.venv\Scripts\python.exe
** ComfyUI Path: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI
** ComfyUI Base Folder Path: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI
** User directory:
[2026-03-29 21:57:34.004] [info] C:\Users\bdsim\Documents\ComfyUI\user
** ComfyUI-Manager config path: C:\Users\bdsim\Documents\ComfyUI\user__manager\config.ini
** Log path: C:\Users\bdsim\Documents\ComfyUI\user\comfyui.log
[2026-03-29 21:57:34.880] [info] [ComfyUI-Manager] Skipped fixing the ‘comfyui-frontend-package’ dependency because the ComfyUI is outdated.
[2026-03-29 21:57:34.882] [info] [PRE] ComfyUI-Manager
[2026-03-29 21:57:37.426] [info] Found comfy_kitchen backend cuda: {‘available’: False, ‘disabled’: True, ‘unavailable_reason’: ‘CUDA not available on this system’, ‘capabilities’: }
[2026-03-29 21:57:37.427] [info] Found comfy_kitchen backend eager: {‘available’: True, ‘disabled’: False, ‘unavailable_reason’: None, ‘capabilities’: [‘apply_rope’, ‘apply_rope1’, ‘dequantize_mxfp8’, ‘dequantize_nvfp4’, ‘dequantize_per_tensor_fp8’, ‘quantize_mxfp8’, ‘quantize_nvfp4’, ‘quantize_per_tensor_fp8’, ‘scaled_mm_mxfp8’, ‘scaled_mm_nvfp4’]}
Found comfy_kitchen backend triton: {‘available’: False, ‘disabled’: True, ‘unavailable_reason’: “ImportError: No module named ‘triton’”, ‘capabilities’: }
[2026-03-29 21:57:37.433] [info] Checkpoint files will always be loaded safely.
[2026-03-29 21:57:37.469] [error] Traceback (most recent call last):
[2026-03-29 21:57:37.470] [error] File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py”, line 197, in
import execution
File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\execution.py”, line 17, in
import comfy.model_management
[2026-03-29 21:57:37.471] [error] File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\comfy\model_management.py”, line 256, in
total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
[2026-03-29 21:57:37.475] [error] ^^
[2026-03-29 21:57:37.475] [error] ^^^^^^^
[2026-03-29 21:57:37.476] [error] ^^^^^^
[2026-03-29 21:57:37.476] [error] ^^^
File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\comfy\model_management.py”, line 206, in get_torch_device
[2026-03-29 21:57:37.477] [error] return torch.device(torch.cuda.current_device())
[2026-03-29 21:57:37.480] [error] ^^^
[2026-03-29 21:57:37.480] [error] ^^^^^
[2026-03-29 21:57:37.481] [error] ^^^^^^
[2026-03-29 21:57:37.481] [error] ^^^^^
[2026-03-29 21:57:37.482] [error] ^^^^^^^^
File “C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda_init_.py”, line 1094, in current_device
[2026-03-29 21:57:37.483] [error] _lazy_init()
[2026-03-29 21:57:37.484] [error] File “C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda_init_.py”, line 417, in _lazy_init
raise AssertionError(“Torch not compiled with CUDA enabled”)
AssertionError: Torch not compiled with CUDA enabled
main.log
[2026-03-29 21:57:30.678] [info] Using uv at C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe
[2026-03-29 21:57:30.679] [info] Install state: installed
[2026-03-29 21:57:30.681] [info] Running uv command directly: pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt
[2026-03-29 21:57:30.681] [info] Running uv child process: uv pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt
[2026-03-29 21:57:30.681] [info] Running command: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt in C:\Users\bdsim\Documents\ComfyUI
[2026-03-29 21:57:30.899] [info] Running uv command directly: pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager_requirements.txt
[2026-03-29 21:57:30.899] [info] Running uv child process: uv pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager_requirements.txt
[2026-03-29 21:57:30.899] [info] Running command: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager_requirements.txt in C:\Users\bdsim\Documents\ComfyUI
[2026-03-29 21:57:31.137] [info] Validation result: isValid:true, state:installed {“inProgress”:false,“installState”:“installed”,“basePath”:“OK”,“venvDirectory”:“OK”,“pythonInterpreter”:“OK”,“uv”:“OK”,“pythonPackages”:“OK”,“git”:“OK”,“vcRedist”:“OK”}
[2026-03-29 21:57:31.848] [info] Server start
[2026-03-29 21:57:31.852] [error] Log rotation: cannot access log dir C:\Users\bdsim\AppData\Roaming\ComfyUI\logs\comfyui.log
[2026-03-29 21:57:31.852] [info] Running command: C:\Users\bdsim\Documents\ComfyUI.venv\Scripts\python.exe C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py --user-directory C:\Users\bdsim\Documents\ComfyUI\user --input-directory C:\Users\bdsim\Documents\ComfyUI\input --output-directory C:\Users\bdsim\Documents\ComfyUI\output --front-end-root C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app --base-directory C:\Users\bdsim\Documents\ComfyUI --database-url sqlite:///C:/Users/bdsim/Documents/ComfyUI/user/comfyui.db --extra-model-paths-config C:\Users\bdsim\AppData\Roaming\ComfyUI\extra_models_config.yaml --log-stdout --listen 127.0.0.1 --port 8000 --enable-manager in C:\Users\bdsim\Documents\ComfyUI
[2026-03-29 21:57:31.882] [info] Received renderer-ready message!
[2026-03-29 21:57:38.061] [error] Python process exited with code 1 and signal null
[2026-03-29 21:57:38.063] [error] Unhandled exception during server start Error: Python process exited with code 1 and signal null
at ChildProcess. (C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\app.asar.vite\build\main.cjs:38781:18)
at ChildProcess.emit (node:events:519:28)
at ChildProcess._handle.onexit (node:internal/child_process:294:12)