Slow Boot
- Dominant language
- Python
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Description
### Custom Node Testing
- [x] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)
### Expected Behavior
ComfyUI boots on Windows as fast as it does on Linux.
### Actual Behavior
Is stuck on the following for an extended period of time:
**Checkpoint files will always be loaded safely.
Total VRAM 32607 MB, total RAM 64678 MB
pytorch version: 2.8.0.dev20250622+cu128
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 5090 : cudaMallocAsync
Using pytorch attention**
### Steps to Reproduce
Start ComfyUI
### Debug Logs
```powershell
Checkpoint files will always be loaded safely.
Total VRAM 32607 MB, total RAM 64678 MB
pytorch version: 2.8.0.dev20250622+cu128
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 5090 : cudaMallocAsync
Using pytorch attention
```
### Other
So i tried a lot of things and no matter what I do ComfyUI always starts WAY faster on Linux than on Windows. Does anyone know how I can significantly speed up boot times, imitating Linux behaviour? (Without WSL or similar since im already on a dualboot rig)
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Assessment
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