# I can't launch UEFN aftre the update

**URL:** <https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, closed, fortnite\
**Created:** [April 16, 2026, 2:56pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909 "2026-04-16T14:56:40Z")\
**Posts on this page:** 14\
**Page:** 1

<div class="post-metadata">

**Author:** ![GiGA3D](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giga3d/32/1168826_2.png) [@GiGA3D](https://forums.unrealengine.com/u/GiGA3D)\
**Post date:** [April 16, 2026, 2:56pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/1 "2026-04-16T14:56:40Z")

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### Summary

When I run UEFN after the update it doesn’t respond

### Please select what you are reporting on:

Unreal Editor for Fortnite

### What Type of Bug are you experiencing?

Other

### Steps to Reproduce

i launch uefn from the epic launcher or disktop icon

### Expected Result

Launching UEFN normally

### Observed Result

this window will pop up

### Platform(s)

pc

### Upload an image

 ![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/a/8/5a85c7cccb148aefb2e17d9a69ec267cd8f3f804.jpeg)

### Video

> **[problem.mp4](https://drive.google.com/file/d/1s8540YPUiKxwo68EjMfXEYTIjXR3EpY-/view?usp=sharing)**
>
> Google Drive file.

### Additional Notes

I Verified files but the problem still happening

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<div class="post-metadata">

**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:** [April 16, 2026, 4:28pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/3 "2026-04-16T16:28:29Z")

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hi @GiGA3D ,

When a new update arrives you need to run Epic Games Launcher As administrator

Delete the old shortcut

then go into the three dots next to the Unreal Engine for Fortnite (UEFN).

Select Manage and Create Shortcut. This will create a shortcut for latest Version of UEFN.

Launch UEFN double click the UEFN to Launch, or click Launch.

You can then use the new shortcut next time

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<div class="post-metadata">

**Author:** ![Asxfa01](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/asxfa01/32/1169173_2.png) [@Asxfa01](https://forums.unrealengine.com/u/Asxfa01)\
**Post date:** [April 17, 2026, 9:06pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/5 "2026-04-17T21:06:57Z")

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same issue here

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<div class="post-metadata">

**Author:** ![Asxfa01](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/asxfa01/32/1169173_2.png) [@Asxfa01](https://forums.unrealengine.com/u/Asxfa01)\
**Post date:** [April 17, 2026, 9:08pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/6 "2026-04-17T21:08:03Z")

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hi so just to clarify for now theres no fix and we have to wait until next update or how does that work?

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<div class="post-metadata">

**Author:** ![Asxfa01](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/asxfa01/32/1169173_2.png) [@Asxfa01](https://forums.unrealengine.com/u/Asxfa01)\
**Post date:** [April 17, 2026, 9:13pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/7 "2026-04-17T21:13:27Z")

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sadly didnt worked, but thx for the help,

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<div class="post-metadata">

**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:** [April 17, 2026, 9:29pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/8 "2026-04-17T21:29:13Z")

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hi the update is a patch (partial).

However some of the files may have been isolated by a anti-virus program

[urc.exe and urc.dll get flagged as Malware from Microsoft Defender - General / Issues and Bug Reporting - Epic Developer Community Forums](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/2)

then [verify again](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5)

If that does not work this means clicking uninstall.

Then re install UEFN completely

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<div class="post-metadata">

**Author:** ![Asxfa01](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/asxfa01/32/1169173_2.png) [@Asxfa01](https://forums.unrealengine.com/u/Asxfa01)\
**Post date:** [April 17, 2026, 9:34pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/9 "2026-04-17T21:34:39Z")

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Ive tried everything so far, but not that, I will try to do what you said, will let you know if it works, thanks

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<div class="post-metadata">

**Author:** ![Asxfa01](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/asxfa01/32/1169173_2.png) [@Asxfa01](https://forums.unrealengine.com/u/Asxfa01)\
**Post date:** [April 17, 2026, 10:01pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/10 "2026-04-17T22:01:57Z")

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nope 😔 added them to excluded and I reven added urc2 and the dll and verified fortnite and UEFN and the issue persists, today was my free day really wanted to work on my project crazy how the problem appeared only to a few people

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<div class="post-metadata">

**Author:** ![GiGA3D](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giga3d/32/1168826_2.png) [@GiGA3D](https://forums.unrealengine.com/u/GiGA3D)\
**Post date:** [April 18, 2026, 12:37pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/11 "2026-04-18T12:37:26Z")

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It didn’t work but thx for help i reinstalled the game

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<div class="post-metadata">

**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:** [April 18, 2026, 1:10pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/12 "2026-04-18T13:10:36Z")

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hi @GiGA3D ,

Well useful. Did re-installing UEFN work?

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<div class="post-metadata">

**Author:** ![Head\_Fly](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Head\_Fly](https://forums.unrealengine.com/u/Head_Fly)\
**Post date:** [April 21, 2026, 12:18am UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/13 "2026-04-21T00:18:10Z")

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Hey, even after the latest update which happened today, I still have the same issue. I tried to Re-install UEFN completely and yet still having the same issue. I did put urc in the anti virus exception and stuff and yea nothing worked.

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<div class="post-metadata">

**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:** [April 21, 2026, 7:30am UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/14 "2026-04-21T07:30:47Z")

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hi @Head_Fly ,

Please remove Epic Games Launcher (EPGL) with Windows uninstall.

Download a new latest copy of EPGL via search Engine, somehow several people have a different version of EPGL.

NOT FROM HERE !!!

> **[Epic Games Store - Download and install on Windows | Microsoft Store](https://apps.microsoft.com/detail/xp99vr1bpsbqj2?hl=en-GB&gl=GB&ocid=pdpshare)**
>
> The Epic Games Store app is your gateway to a world of games, apps, and creative tools for PC and Mac. Sign up for an Epic Games Account, download the app and get a free game every week!
>  
> Visit the Epic Games Store to browse, buy, and play the...

Why they let These **Rogue** versions out dont know!

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<div class="post-metadata">

**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\
**Post date:** [April 28, 2026, 4:00pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/15 "2026-04-28T16:00:42Z")

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FORT-1089372 has been ‘Closed’. We’re unable to reproduce this issue.

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<div class="post-metadata">

**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\
**Post date:** [October 13, 2026, 2:57pm UTC](https://forums.unrealengine.com/t/i-cant-launch-uefn-aftre-the-update/2715909/16 "2026-10-13T14:57:03Z")

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