# Epic Games Launcher version 19.0.0 does not start on Core 2 Duo CPUs due to lack of SSE4.2 support.

**URL:** <https://forums.unrealengine.com/t/epic-games-launcher-version-19-0-0-does-not-start-on-core-2-duo-cpus-due-to-lack-of-sse4-2-support/2672526>\
**Category:** Feedback & Requests\
**Tags:** launcher-not-startin, launcher-issue, launcher-crash, epic-games-launcher, epic-games-store, bug-report, question\
**Created:** [November 7, 2025, 3:04am UTC](https://forums.unrealengine.com/t/epic-games-launcher-version-19-0-0-does-not-start-on-core-2-duo-cpus-due-to-lack-of-sse4-2-support/2672526 "2025-11-07T03:04:42Z")\
**Posts on this page:** 1\
**Showing post:** 42

<div class="post-metadata">

**Author:** ![floyd\_eg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@floyd\_eg](https://forums.unrealengine.com/u/floyd_eg)\
**Post date:** [December 3, 2025, 12:47am UTC](https://forums.unrealengine.com/t/epic-games-launcher-version-19-0-0-does-not-start-on-core-2-duo-cpus-due-to-lack-of-sse4-2-support/2672526/42 "2025-12-03T00:47:48Z")

</div>

Don’t lose your precious time with support, the problem is what it is, they will not support CPUs older than an i3/AMD FX. We have to request a v18 installer that does not auto update. Vote for this request if you want it:

> [@\[REQUEST\] Official v18 custom installer that does not auto update to v19](https://forums.unrealengine.com/t/request-official-v18-custom-installer-that-does-not-auto-update-to-v19/2680521):
>
> Epic Games silently modified the minimum system requirements for the launcher without notice and just after [this issue was reported](https://forums.unrealengine.com/t/epic-games-launcher-version-19-0-0-does-not-start-on-core-2-duo-cpus-due-to-lack-of-sse4-2-support/2672526), so the bug published on that thread will never be solved. The new minimum system requirements are: Processor: Intel Core i3 / AMD FX So, the users with a processor not compatible with the latest version need a v18 manual installer that does not auto update to v19 like it does the one provided by support [here](https://www.epicgames.com/help/en-US/technical-support-c-202300000001619/general-support-c-202300000001672/can-t-install-the-epic-games-launcher-on-windows-7-windows-8-or-32-bit-windows-a202300000021375) That installer auto updates to v19 during the insta…

---

_[View the full topic](https://forums.unrealengine.com/t/epic-games-launcher-version-19-0-0-does-not-start-on-core-2-duo-cpus-due-to-lack-of-sse4-2-support/2672526)._