# \#prerequisites

**URL:** https://forums.unrealengine.com/tag/prerequisites/9760.md

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## [What redistributables are required for packaged game installs?](https://forums.unrealengine.com/t/what-redistributables-are-required-for-packaged-game-installs/416632)

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**Author:** [@elliotENGi](https://forums.unrealengine.com/u/elliotENGi)\
**Replies:** 11\
**Last updated:** [November 10, 2024, 2:15pm UTC](https://forums.unrealengine.com/t/what-redistributables-are-required-for-packaged-game-installs/416632 "2024-11-10T14:15:30Z")

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Hey just need to know what pre-req’s I need to install to a pc for my ue4.16 game to run (not using the Unrealprereq installer because we’re releasing through steam). Is there an up to date list somewhere of the pre-req…

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## [Unreal Engine: Prerequisites Stuck](https://forums.unrealengine.com/t/unreal-engine-prerequisites-stuck/388958)

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**Author:** [@Dr\_Pawsworth](https://forums.unrealengine.com/u/Dr_Pawsworth)\
**Replies:** 6\
**Last updated:** [December 27, 2022, 6:58pm UTC](https://forums.unrealengine.com/t/unreal-engine-prerequisites-stuck/388958 "2022-12-27T18:58:32Z")

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Hello. Recently due to several complications that I’ve had to sort out, I have been forced to reinstall Unreal Engine to continue my projects. However, while attempting to do so, I have run into a problem: the Engine i…

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## [Still no prereq in packaged game?](https://forums.unrealengine.com/t/still-no-prereq-in-packaged-game/428007)

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**Author:** [@uced](https://forums.unrealengine.com/u/uced)\
**Replies:** 7\
**Last updated:** [October 17, 2022, 4:07am UTC](https://forums.unrealengine.com/t/still-no-prereq-in-packaged-game/428007 "2022-10-17T04:07:48Z")

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Hello, It seems that the prerequisites are still not included in packaged games. This is not something that is easy to test, so i can only have a feedback when i or one of my beta testers make a clean windows reinstall…

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## [Installation failure cannot install prerequisites](https://forums.unrealengine.com/t/installation-failure-cannot-install-prerequisites/479855)

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**Author:** [@anonymous\_user\_64258e37](https://forums.unrealengine.com/u/anonymous_user_64258e37)\
**Replies:** 0\
**Last updated:** [March 6, 2021, 9:38pm UTC](https://forums.unrealengine.com/t/installation-failure-cannot-install-prerequisites/479855 "2021-03-06T21:38:29Z")

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I keep getting error LS-0019-IS-PQR3010 prerequisites installation failed. I have tried all the solutions suggested here with no luck: https://www.epicgames.com/help/en-US/epic-games-store-c73/error-codes-c100/ls0019-pr…

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## [Automatically check prerequisites for packaged game](https://forums.unrealengine.com/t/automatically-check-prerequisites-for-packaged-game/416635)

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**Author:** [@CaptParis000](https://forums.unrealengine.com/u/CaptParis000)\
**Replies:** 1\
**Last updated:** [January 29, 2021, 11:30am UTC](https://forums.unrealengine.com/t/automatically-check-prerequisites-for-packaged-game/416635 "2021-01-29T11:30:46Z")

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Hi, I’m having trouble with the ‘include prerequisites’ option for packaging. In a few places I’ve seen people mention that it’s supposed to check for prerequisites before running the packaged .exe and ask to install, wh…

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## [Lighting Build Failed - Failed to initialize swarm](https://forums.unrealengine.com/t/lighting-build-failed-failed-to-initialize-swarm/461879)

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**Author:** [@anonymous\_user\_a0c626d31](https://forums.unrealengine.com/u/anonymous_user_a0c626d31)\
**Replies:** 0\
**Last updated:** [February 28, 2020, 6:31am UTC](https://forums.unrealengine.com/t/lighting-build-failed-failed-to-initialize-swarm/461879 "2020-02-28T06:31:15Z")

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Hello, I’ve been trying to work around this issue for weeks. Anytime I build lighting it shows up and the lighting fails to build. I was previously on 4.24.2, and just updated to 4.24.3 with no change. I have tried us…

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## [Error Code: LS-0019-IS-IZ01](https://forums.unrealengine.com/t/error-code-ls-0019-is-iz01/434895)

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**Author:** [@anonymous\_user\_f3558a3f](https://forums.unrealengine.com/u/anonymous_user_f3558a3f)\
**Replies:** 0\
**Last updated:** [October 2, 2018, 2:17pm UTC](https://forums.unrealengine.com/t/error-code-ls-0019-is-iz01/434895 "2018-10-02T14:17:36Z")

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“The Prerequisites for Unreal Engine failed to install” I have tried sever of the trouble shooting methods (uninstall/reinstall UE4, Uninstall/reinstall visual studio and all of its components). The computer is a work …

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## [14.9.2 Will not launch - Prequisites failing around LauncherPrereqSetup\_x64.msi - error message URL points to other error messages how do I resolve?](https://forums.unrealengine.com/t/14-9-2-will-not-launch-prequisites-failing-around-launcherprereqsetup-x64-msi-error-message-url-points-to-other-error-messages-how-do-i-resolve/424990)

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**Author:** [@SvenGG](https://forums.unrealengine.com/u/SvenGG)\
**Replies:** 1\
**Last updated:** [May 13, 2018, 6:44pm UTC](https://forums.unrealengine.com/t/14-9-2-will-not-launch-prequisites-failing-around-launcherprereqsetup-x64-msi-error-message-url-points-to-other-error-messages-how-do-i-resolve/424990 "2018-05-13T18:44:09Z")

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UE4 Was working fine prior to the latest update, but now it won’t launch. Expected Behavior Launching UE 14.9.2 launches the software. Observed Behavior The following series of errors occurs: Attempted Solution…

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## [When is VS2017 required?](https://forums.unrealengine.com/t/when-is-vs2017-required/422517)

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**Author:** [@anonymous\_user\_5ff092a51](https://forums.unrealengine.com/u/anonymous_user_5ff092a51)\
**Replies:** 2\
**Last updated:** [April 16, 2018, 8:49am UTC](https://forums.unrealengine.com/t/when-is-vs2017-required/422517 "2018-04-16T08:49:02Z")

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Can you all help with a clear answer as to when Unreal requires VS2017 in order to package please? The documentation states there is a requirement for VS2017, however, I know VS is not required to package basic projects…

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## [How can I setup all prerequisites with batch file?](https://forums.unrealengine.com/t/how-can-i-setup-all-prerequisites-with-batch-file/420532)

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**Author:** [@anonymous\_user\_156ac7a0](https://forums.unrealengine.com/u/anonymous_user_156ac7a0)\
**Replies:** 1\
**Last updated:** [March 22, 2018, 4:04pm UTC](https://forums.unrealengine.com/t/how-can-i-setup-all-prerequisites-with-batch-file/420532 "2018-03-22T16:04:15Z")

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I want to setup all prerequisites with executing UE4PrereqSetup\_x64.exe in AWS EC2 instance. But, I can only execute batch file, so that I should run all process without any user input. Is there any way to do this?

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## [SU-PQR1603 installing prerequisites error](https://forums.unrealengine.com/t/su-pqr1603-installing-prerequisites-error/419455)

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**Author:** [@Pax\_jy](https://forums.unrealengine.com/u/Pax_jy)\
**Replies:** 1\
**Last updated:** [March 21, 2018, 1:35am UTC](https://forums.unrealengine.com/t/su-pqr1603-installing-prerequisites-error/419455 "2018-03-21T01:35:48Z")

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Sorry for my english T\_T While i was searching to install prerequisites of Epic Games Launches, it always gives me "SU-PQR1603"error . I found a fix while editing target of shortcut i can skip this part but then, games …

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## [No prerequisite in packaged game?](https://forums.unrealengine.com/t/no-prerequisite-in-packaged-game/419744)

<div class="topic-metadata">

**Author:** [@uced](https://forums.unrealengine.com/u/uced)\
**Replies:** 3\
**Last updated:** [March 16, 2018, 6:18am UTC](https://forums.unrealengine.com/t/no-prerequisite-in-packaged-game/419744 "2018-03-16T06:18:39Z")

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Hello, This is an old one, i already posted a BR and this was supposed to be solved in 4.17 (UE-43812). But one of my testing friends installed my packaged game on a fresh windows and couldn’t play due to missing dll…

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## [Why wont my launcher install prerequisites?](https://forums.unrealengine.com/t/why-wont-my-launcher-install-prerequisites/419767)

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**Author:** [@FrostedHaze](https://forums.unrealengine.com/u/FrostedHaze)\
**Replies:** 0\
**Last updated:** [March 14, 2018, 1:45pm UTC](https://forums.unrealengine.com/t/why-wont-my-launcher-install-prerequisites/419767 "2018-03-14T13:45:10Z")

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Ive gotten hung up and can’t seem to get the launcher to self update properly. To get the launcher installed in the first place I had to use command prompt to launch the installer so that it would skip the directx insta…

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## [Error Installing PreRequisites](https://forums.unrealengine.com/t/error-installing-prerequisites/419184)

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**Author:** [@anonymous\_user\_37fb6d09](https://forums.unrealengine.com/u/anonymous_user_37fb6d09)\
**Replies:** 0\
**Last updated:** [March 7, 2018, 7:11pm UTC](https://forums.unrealengine.com/t/error-installing-prerequisites/419184 "2018-03-07T19:11:21Z")

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I have been trying to download this for 3 days now and I cannot seem to get the prerequisites to install. I have tried every fix that I’ve seen and none worked. I used the external prerequisites installer to get the erro…

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## [Unreal Engine 4.14.1 prerequisites won't install](https://forums.unrealengine.com/t/unreal-engine-4-14-1-prerequisites-wont-install/380173)

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**Author:** [@anonymous\_user\_fed36cf1](https://forums.unrealengine.com/u/anonymous_user_fed36cf1)\
**Replies:** 6\
**Last updated:** [February 27, 2018, 2:58pm UTC](https://forums.unrealengine.com/t/unreal-engine-4-14-1-prerequisites-wont-install/380173 "2018-02-27T14:58:23Z")

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I’m trying to install UE 4.14.1 for almost 2 hours yet when done installing i get a message saying that it failed to install the prerequisites with the following: “The necessary prerequisites have failed to install”. I’m…

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## [Cannot install prerequisites (DirectX internal error)](https://forums.unrealengine.com/t/cannot-install-prerequisites-directx-internal-error/418343)

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**Author:** [@Montblanc0](https://forums.unrealengine.com/u/Montblanc0)\
**Replies:** 0\
**Last updated:** [February 26, 2018, 5:38am UTC](https://forums.unrealengine.com/t/cannot-install-prerequisites-directx-internal-error/418343 "2018-02-26T05:38:21Z")

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I have the same exact problem described in very detail in this thread. Error messages, steps to reproduce and codes are the sameI did everything I could and also went through the SYSTEM permission fix that was marked as …

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## [How to put prerequisites good to launch Unreal Engine?](https://forums.unrealengine.com/t/how-to-put-prerequisites-good-to-launch-unreal-engine/417673)

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**Author:** [@anonymous\_user\_74d1158d](https://forums.unrealengine.com/u/anonymous_user_74d1158d)\
**Replies:** 0\
**Last updated:** [February 18, 2018, 3:52pm UTC](https://forums.unrealengine.com/t/how-to-put-prerequisites-good-to-launch-unreal-engine/417673 "2018-02-18T15:52:47Z")

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I have downloaded the Unreal Engine from the Epic Games Launcher but I can’t launch it. When I click in “launch” it gets stuck on “prerequisites” and gives the folowing error: Please help, I need to fix that problem …

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## [Installation failed due to prerequisits no installing](https://forums.unrealengine.com/t/installation-failed-due-to-prerequisits-no-installing/409636)

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**Author:** [@anonymous\_user\_98da4b6a](https://forums.unrealengine.com/u/anonymous_user_98da4b6a)\
**Replies:** 1\
**Last updated:** [December 22, 2017, 6:21pm UTC](https://forums.unrealengine.com/t/installation-failed-due-to-prerequisits-no-installing/409636 "2017-12-22T18:21:12Z")

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When I tried to install Unreal Engine 4.18.0 I got a message saying the installation failed because of prerequisites not installing. How do I fix this?

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## [Prerequisites Failed to Install](https://forums.unrealengine.com/t/prerequisites-failed-to-install/410172)

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**Author:** [@PedoStevo](https://forums.unrealengine.com/u/PedoStevo)\
**Replies:** 2\
**Last updated:** [November 22, 2017, 8:01pm UTC](https://forums.unrealengine.com/t/prerequisites-failed-to-install/410172 "2017-11-22T20:01:52Z")

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I try to install the Epic Games launcher so i can play Fortnite but when it installs Prerequisites it just fails to install. It gives me multiple Error codes that arent posted on the support page. I have tried to email s…

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## [My Epic Games launcher stuck at prerequisites (PC)](https://forums.unrealengine.com/t/my-epic-games-launcher-stuck-at-prerequisites-pc/409654)

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**Author:** [@PedoStevo](https://forums.unrealengine.com/u/PedoStevo)\
**Replies:** 0\
**Last updated:** [November 15, 2017, 2:04pm UTC](https://forums.unrealengine.com/t/my-epic-games-launcher-stuck-at-prerequisites-pc/409654 "2017-11-15T14:04:16Z")

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I have tried reinstalling multiple times and running as administrator and some people have had the same problem and resolved them but never said how. Basically when i am installing Epic Games launcher it stops at Install…

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## [No more prereq in packaged game?](https://forums.unrealengine.com/t/no-more-prereq-in-packaged-game/391913)

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**Author:** [@uced](https://forums.unrealengine.com/u/uced)\
**Replies:** 3\
**Last updated:** [April 27, 2017, 4:56pm UTC](https://forums.unrealengine.com/t/no-more-prereq-in-packaged-game/391913 "2017-04-27T16:56:57Z")

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Hey ! I recently had to install my packaged game on a quasi vanilla windows 10, and at first run i got an error message “DirectX runtime missing”. I have the “install prereq” option checked in the project settings. La…

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## [UE 4.15 is not installing](https://forums.unrealengine.com/t/ue-4-15-is-not-installing/385032)

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**Author:** [@Alchemy\_Studio\_Music](https://forums.unrealengine.com/u/Alchemy_Studio_Music)\
**Replies:** 1\
**Last updated:** [February 15, 2017, 10:15pm UTC](https://forums.unrealengine.com/t/ue-4-15-is-not-installing/385032 "2017-02-15T22:15:50Z")

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When I try to add the new 4.15 UE version it appears the icon 4.15.0 but it always says “Please wait” and it is not downloading anything also, when I launch the engine, it continuously says that “the prerequisites ha…

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## [Engine Prerequesites Failing - 0x80070666](https://forums.unrealengine.com/t/engine-prerequesites-failing-0x80070666/380807)

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**Author:** [@Answers.Archive](https://forums.unrealengine.com/u/Answers.Archive)\
**Replies:** 1\
**Last updated:** [January 3, 2017, 7:50pm UTC](https://forums.unrealengine.com/t/engine-prerequesites-failing-0x80070666/380807 "2017-01-03T19:50:30Z")

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Hello, We are seeing some issues with one of our shipped games. Some users are complaining about failing to install the prerequisites for UE4. On closer inspection it is failing to install the “vcredist\_x86.exe” with …

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## [Unable to install Unreal engine prerequisites](https://forums.unrealengine.com/t/unable-to-install-unreal-engine-prerequisites/380279)

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**Author:** [@corbyn123](https://forums.unrealengine.com/u/corbyn123)\
**Replies:** 2\
**Last updated:** [December 29, 2016, 10:25pm UTC](https://forums.unrealengine.com/t/unable-to-install-unreal-engine-prerequisites/380279 "2016-12-29T22:25:43Z")

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Simply attempting to play a game by “tinybuild” (Hello Neighbor) using the engine, it tells me to install microsoft runtime 2015 c++, so i attempt so, though it states that i already have a newer version, though in the p…

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## [Problems installing pre requisites](https://forums.unrealengine.com/t/problems-installing-pre-requisites/374620)

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**Author:** [@AlolanSomeone](https://forums.unrealengine.com/u/AlolanSomeone)\
**Replies:** 1\
**Last updated:** [October 27, 2016, 3:48pm UTC](https://forums.unrealengine.com/t/problems-installing-pre-requisites/374620 "2016-10-27T15:48:32Z")

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Hello there, i am trying to install it and i keep getting the “fatal error” message. I’ve already searched some solutions, but none of them worked for me :frowning: Can someone help me? DxDiag Log

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## [UE4 Prerequisites not found](https://forums.unrealengine.com/t/ue4-prerequisites-not-found/372193)

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**Author:** [@anonymous\_user\_9dbb286d](https://forums.unrealengine.com/u/anonymous_user_9dbb286d)\
**Replies:** 1\
**Last updated:** [October 3, 2016, 12:54pm UTC](https://forums.unrealengine.com/t/ue4-prerequisites-not-found/372193 "2016-10-03T12:54:46Z")

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Hello, When I try to update unreal to 4.13 I get a message that my prerequisites are on a network resource that is unavailable. (unreal.png) When I press ‘OK’, the second png pops up. (unreal2.png) And after that the …

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## [\[packaging\]\[windows\] Bypass DirectX SDK install? Via MinimumOSVersion?](https://forums.unrealengine.com/t/packaging-windows-bypass-directx-sdk-install-via-minimumosversion/354659)

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**Author:** [@NicB](https://forums.unrealengine.com/u/NicB)\
**Replies:** 1\
**Last updated:** [August 19, 2016, 4:40pm UTC](https://forums.unrealengine.com/t/packaging-windows-bypass-directx-sdk-install-via-minimumosversion/354659 "2016-08-19T16:40:28Z")

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Hi, curious if there’s a way to streamline the game installer if I know my game will only run on Windows 8.1 or later. I would love to simplify the UE4 prerequesites and overhead, especially the error-prone June 2010 D…

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## [Install error IS-PQR1603](https://forums.unrealengine.com/t/install-error-is-pqr1603/360036)

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**Author:** [@jackofchaos](https://forums.unrealengine.com/u/jackofchaos)\
**Replies:** 3\
**Last updated:** [July 18, 2016, 12:38pm UTC](https://forums.unrealengine.com/t/install-error-is-pqr1603/360036 "2016-07-18T12:38:33Z")

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I’ve been having problems with the launcher in general since I fresh installed Windows 10. When I installed the launcher, it gave me problems with the prerequisites. I was able to force it around, but now I need some ser…

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## [How many time do I have to wait, until the prerequisite installation finish?](https://forums.unrealengine.com/t/how-many-time-do-i-have-to-wait-until-the-prerequisite-installation-finish/361847)

<div class="topic-metadata">

**Author:** [@anonymous\_user\_dc635066](https://forums.unrealengine.com/u/anonymous_user_dc635066)\
**Replies:** 1\
**Last updated:** [June 23, 2016, 9:02pm UTC](https://forums.unrealengine.com/t/how-many-time-do-i-have-to-wait-until-the-prerequisite-installation-finish/361847 "2016-06-23T21:02:23Z")

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I’m been waiting until the installation proccess finish, but Has been a long time and stills on the prerequisites screen, how many hours Do I have to wait?

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## [Unreal Engine 4.12.2 Installation Stuck on prerequisites](https://forums.unrealengine.com/t/unreal-engine-4-12-2-installation-stuck-on-prerequisites/360848)

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**Author:** [@anonymous\_user\_b6c4084a](https://forums.unrealengine.com/u/anonymous_user_b6c4084a)\
**Replies:** 1\
**Last updated:** [June 15, 2016, 1:19pm UTC](https://forums.unrealengine.com/t/unreal-engine-4-12-2-installation-stuck-on-prerequisites/360848 "2016-06-15T13:19:31Z")

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Hello I try to install Unreal Engine 4.12.2 on my computer but the installation stuck on prerequisites after verifiying the files. Not sure if I do something wrong , already searched for this problem but unfortunately …

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