# \[Major\] UEFN Won't Launch after newest patch still- Stuck on "90% Logging In" running for over 10 hours

**URL:** <https://forums.unrealengine.com/t/major-uefn-wont-launch-after-newest-patch-still-stuck-on-90-logging-in-running-for-over-10-hours/2547104>\
**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:** 1\
**Showing post:** 7

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**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")

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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)

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