# \[Major\] UEFN Won't Launch after newest patch still- Stuck on "90% Logging In" running for over 10 hours **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** closed, fortnite-creative, unreal-editor-for-fortnite, fortnite\ **Created:** [June 8, 2025, 5:33pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104 "2025-06-08T17:33:24Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Atom\_XC](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Atom\_XC](https://forums.unrealengine.com/u/Atom_XC)\ **Post date:** [June 8, 2025, 5:33pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/1 "2025-06-08T17:33:25Z")
### Summary I tried to launch UEFN yesterday and it would always get stuck at 90% logging in. I left my computer on with uefn stuck at that for OVER 10 HOURS FROM 2 AM to 12 PM and IT STILL DIDNT LAUNCH. I tried updating with the latest patch to supposedly “fix” the launch issues BUT IT DIDNT CHANGE ANYTHING. Ive uninstalled and reinstalled and verified files multiple times but it just wont work. This is REALLY HINDERING MY WORK AND I NEED THIS FIXED ASAP. ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? Other ### Steps to Reproduce Launch UEFN- I haven’t seen anyone else report this issue. ### Expected Result UEFN Launches ### Observed Result UEFN gets stuck at 90% Logging In ### Platform(s) PC ---
**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:** [June 8, 2025, 9:16pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/3 "2025-06-08T21:16:42Z")
hi @Atom_XC , Right-click the Epic Games Launcher (EPGL) and select Properties -\>General -\>Advanced Epic Games Launcher (EPGL) must be started in “Run As Administrator” see picture below ![EpicLauncherAdministrator](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/c/2/0c286fbda143239b51f080f2c6d5372a3983ed9b.png) Open EPGL using updated shortcut Allow the Download of 8th June 2025 19:36 UTC 3.7GB to take place Then Verify [How to verify](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5) Restart PC Restart EPGL using the updated shortcut. with “Run As Administrator” Launch UEFN ---
**Author:** ![Atom\_XC](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Atom\_XC](https://forums.unrealengine.com/u/Atom_XC)\ **Post date:** [June 8, 2025, 10:12pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/4 "2025-06-08T22:12:59Z")
Did not work. Still stuck at “90% - Logging In…” ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/9/c/e9c14c7af55ce98b2b85c70184b405aa4f215b5e.jpeg) ---
**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:** [June 9, 2025, 12:09am UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/5 "2025-06-09T00:09:31Z")
hi @Atom_XC , check your directory and delete content of C:\Users%username%\AppData\Local\UnrealEditorFortnite\saved"." C:\Users%username%\AppData\Local\UnrealEditorFortnite\Intermediate\*." these are temporary files. try launching again if not its an account problem try launching Fortnite itself ---
**Author:** ![Atom\_XC](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Atom\_XC](https://forums.unrealengine.com/u/Atom_XC)\ **Post date:** [June 9, 2025, 1:32am UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/6 "2025-06-09T01:32:01Z")
It still didn’t work. It’s not an account problem because I’ve tested it with two accounts, and it doesn’t work for either of them. And Fortnite itself launches absolutely fine. This issue only started happening yesterday after the Ch6 S3 update. ---
**Author:** ![Atom\_XC](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Atom\_XC](https://forums.unrealengine.com/u/Atom_XC)\ **Post date:** [June 9, 2025, 10:19pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/7 "2025-06-09T22:19:24Z")
I SOLVED IT! Using a Clean Boot of my PC I figured out actually that a software on my computer was blocking UEFN for some odd reason. If anyone else ever has this issue take a look at this website and you should be able to fix it! [How to perform a clean boot in Windows - Microsoft Support](https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd) ---
**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:** [June 17, 2025, 7:05pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/8 "2025-06-17T19:05:40Z")
FORT-920767 has been ‘Closed’. The issue reported is not caused by a bug in the tool. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [December 5, 2025, 5:33pm UTC](https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104/9 "2025-12-05T17:33:39Z")
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