ComfyUI How-To Tutorials

How ComfyUI How-To Tutorials works on Windows

Fast task walkthroughs for installing ComfyUI Manager, fixing missing red nodes, loading PNG metadata, and clearing CUDA OOM. Actionable instructions for everyday ComfyUI desktop tasks, runtime troubleshooting, and graph construction.

Every page in this directory focuses on practical local execution on Windows 10 and Windows 11, keeping your checkpoints, LoRAs, and generated outputs entirely on your own SSD.

Start by grabbing the current Windows build from /download, or browse the guides and node blueprints linked below.

Key workflow principles

• Keep large `.safetensors` and `.gguf` weights inside organized `models/` subfolders or map shared directories through extra_model_paths.yaml.
• Match your model precision (FP16, FP8 e4m3fn, or GGUF Q4/Q8) to your card's VRAM tier so sampling stays in GPU memory without paging to disk.
• Drag any generated PNG directly onto the ComfyUI Studio canvas to reload its exact node wiring, seed, and sampler values.

Featured pages in ComfyUI How-To Tutorials

• How to Fix Red Missing Nodes in ComfyUI Workflows — Direct Windows guide for "comfyui missing nodes red box fix": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Fix CUDA Out of Memory (OOM) in ComfyUI — Direct Windows guide for "comfyui cuda out of memory fix": folder paths, node wiring, and VRAM settings in ComfyUI.
• Where to Put Flux.1 Safetensors, CLIP & VAE Files in ComfyUI — Direct Windows guide for "where to put flux model in comfyui": folder paths, node wiring, and VRAM settings in ComfyUI.
• Where to Put LoRA Files in ComfyUI & How to Chain Them — Direct Windows guide for "where to put loras in comfyui": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Load GGUF Flux & Video Models in ComfyUI — Direct Windows guide for "how to use gguf in comfyui": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Fix Black or NaN Image Outputs in ComfyUI — Direct Windows guide for "comfyui generating black images fix": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Update ComfyUI Without Breaking Custom Nodes — Direct Windows guide for "how to update comfyui safely": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Chain Multiple LoRAs in a ComfyUI Graph — Direct Windows guide for "how to use multiple loras in comfyui": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Build an Image-to-Image (img2img) Workflow in ComfyUI — Direct Windows guide for "comfyui img2img tutorial": folder paths, node wiring, and VRAM settings in ComfyUI.
• Fix Port 8188 Already in Use When Launching ComfyUI — Direct Windows guide for "comfyui port 8188 already in use": folder paths, node wiring, and VRAM settings in ComfyUI.
• How to Remove Image Backgrounds Automatically in ComfyUI — Direct Windows guide for "comfyui remove background node": folder paths, node wiring, and VRAM settings in ComfyUI.
• Fix ComfyUI Freezing or Slow at 100% (VAE Decode Step) — Direct Windows guide for "comfyui stuck on vae decode": folder paths, node wiring, and VRAM settings in ComfyUI.
• Comfy Download — "comfy download" is a real ComfyUI search. Install the desktop or portable Windows build, put weights in the matching models folder, then run the graph locally.
• Comfy Ui Download — "comfy ui download" is a real ComfyUI search. Install the desktop or portable Windows build, put weights in the matching models folder, then run the graph locally.