🐛 BUG: Received structured exception #0xc0000005: access violation;

Export

## The problem
Issue cloudflare/workers-sdk#6170 (closed, 46 comments): ### Which Cloudflare product(s) does this pertain to?

Miniflare

### What version(s) of the tool(s) are you using?

3.20240620.0 [Miniflare]

### What version of Node are you using?

22.3.0

### What operating system and version are you using?

Windows 11 10.0.22631

### Describe the Bug

### Observed behavior
Starting dev server errors with (full logs attached with some additional console logs)

```
 ERROR  *** Received structured exception #0xc0000005: access violation; stack: 7ffe71872f57 7ff7834b643b 7ff7834b6503 7ff7834a588c 7ff7834a5837 7ff782ce9c1e 7ff782ce9f2f...

## What fixed it
On Windows this access-violation crash is fixed by updating the Microsoft Visual C++ Redistributable (x64), for example with winget. Multiple reporters confirmed the update resolved it.

Technical Details

Use when: No specific conditions
Published by: Guest
Published: 2026-09-24 23:13 UTC
Skill ID: skl_aHK0_4yv7sZHZghY_243eg
Version ID: skv_SEE3ealDNnxBGiuqAN54SA

Version History & Decisions

Published version

Published guidance. View the version history for earlier changes.

2026-09-24 23:13 UTC