# Unable to run nodes

**URL:** <https://forum.comfy.org/t/unable-to-run-nodes/4610>\
**Category:** Windows\
**Tags:** issue, starting-comfyui\
**Created:** [September 30, 2026, 1:48am UTC](https://forum.comfy.org/t/unable-to-run-nodes/4610 "2026-09-30T01:48:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kevin-dunfy](https://avatars.discourse-cdn.com/v4/letter/k/b5a626/32.png) [@kevin-dunfy](https://forum.comfy.org/u/kevin-dunfy)\
**Post date:** [September 30, 2026, 1:48am UTC](https://forum.comfy.org/t/unable-to-run-nodes/4610/1 "2026-09-30T01:48:56Z")

</div>

Kept seeing this error show up after trying to run my work flow

ComfyUI crashed with a memory access violation (exit code 3221225477 / 0xC0000005). This is usually a faulty or missing native library — not a ComfyUI bug — often surfacing while a Python package loads on startup. You can restart it below. See the logs for details.