# UEFN Keeps crashing whenever i open a project

**URL:** <https://forums.unrealengine.com/t/uefn-keeps-crashing-whenever-i-open-a-project/2492603>\
**Category:** Issues and Bug Reporting\
**Tags:** unreal-engine\
**Created:** [May 6, 2025, 4:16am UTC](https://forums.unrealengine.com/t/uefn-keeps-crashing-whenever-i-open-a-project/2492603 "2025-05-06T04:16:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BXUA](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bxua/32/1060227_2.png) [@BXUA](https://forums.unrealengine.com/u/BXUA)\
**Post date:** [May 6, 2025, 4:16am UTC](https://forums.unrealengine.com/t/uefn-keeps-crashing-whenever-i-open-a-project/2492603/1 "2025-05-06T04:16:02Z")

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### Summary

UEFN was working fine and then suddenly it crashed. I haven’t been able to open projects since. What should i do?

### Please select what you are reporting on:

Unreal Editor for Fortnite

### What Type of Bug are you experiencing?

Stability

### Steps to Reproduce

Open UEFN and open a project

### Expected Result

Project to load and be able to edit things

### Observed Result

UEFN Crashes

### Platform(s)

PC

### Upload an image

 ![Screenshot (244).png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/e/6/4e6cfb400c369b0dc7b14e96725890df9db41d12.png)

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**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\
**Post date:** [May 6, 2025, 10:57am UTC](https://forums.unrealengine.com/t/uefn-keeps-crashing-whenever-i-open-a-project/2492603/2 "2025-05-06T10:57:33Z")

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hi @BXUA  
The first thing you need to do is verify that your UEFN installation has not been corrupted after the upgrade.  
[How to Verify your UEFN](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5)

If that does not work go further back in the post about adding UEFN executable to the Windowd defender Exception list and verify again

Then add a big pagefile as in [Install a manual larger pagefile](https://forums.unrealengine.com/t/cant-create-c-project-or-use-c/238169/2)

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**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\
**Post date:** [November 2, 2025, 4:16am UTC](https://forums.unrealengine.com/t/uefn-keeps-crashing-whenever-i-open-a-project/2492603/3 "2025-11-02T04:16:53Z")

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