# Cant launch Unreal Engine 4.4.3

**URL:** <https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055>\
**Category:** Platform & Builds\
**Tags:** launch, unreal-engine, editor, question\
**Created:** [October 1, 2014, 10:02pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055 "2014-10-01T22:02:28Z")\
**Posts on this page:** 19\
**Page:** 1

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 1, 2014, 10:02pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/1 "2014-10-01T22:02:28Z")

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Hey Guys,

i suscriped and downloaded UE4 Engine right now. But I cant launch the Editor, in this case, i tried some solutions which are given here in the “Answerhub”.  
But nothing helped.

System Specs: i7 2600k , 8GB Ram, 1TB Space, Nvidia 550 Ti, Windows 7

I would enjoy some help,  
sorry for my English-Skill!

Greetings from Germany!

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**Author:** ![anonymous\_user\_759e5c3a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_759e5c3a](https://forums.unrealengine.com/u/anonymous_user_759e5c3a)\
**Post date:** [October 1, 2014, 10:17pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/2 "2014-10-01T22:17:15Z")

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Thank you for your report. We have assigned this issue to a member of our support staff, and they will begin investigation as soon as possible. If we are unable to reproduce the issue, or we need additional information, our staff member will comment here with additional questions. Otherwise, we will post an ‘Answer’ once we have logged the issue in our bug database or we have a solution for it.

In the meantime, please be sure to review our suggestions for how to report a bug, and feel free to edit your post if you have additional information to provide.

> **[How do I report a bug?](https://forums.unrealengine.com/questions/12363/how-do-i-report-a-bug.html)**
>
> I have discovered an issue with the Editor or with another component of the Unreal Engine 4, and I would like to report it to Epic. How should I do this?

Thank you.

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**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 2, 2014, 4:56pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/3 "2014-10-02T16:56:09Z")

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Hi GameDesignHero,

You said the editor doesn’t launch. What exactly is happening? Do you receive any sort of Crash popup window? Also, have you tried launching the .exe as Admin?

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 2, 2014, 5:02pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/4 "2014-10-02T17:02:36Z")

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Tried to Launch the Editor per Launcher and the 64bit.exe. The little popup window from UE4 Ediotr pops up, with the comment “loading”. After 3-6 Seconds the window disappeared without any crash report. Tried to launch as Admin, no result, same issue

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**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 2, 2014, 7:09pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/5 "2014-10-02T19:09:29Z")

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You said above that you tried other solution on AnswerHub. Have you tried the two below?

- Disable any Anti-Virus software which is running in the background?

- Restart your system.

- Uninstall and reinstall UE4?

If these do not fix the issue, please post your dxdiag. Direction on how to find this can be found in the link posted above.

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 2, 2014, 10:54pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/6 "2014-10-02T22:54:29Z")

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Here is my DxDiag.  
Hope you can help me fix that 🙂

link text

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**Author:** ![S-ed](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/s-ed/32/1194558_2.png) [@S-ed](https://forums.unrealengine.com/u/S-ed)\
**Post date:** [October 2, 2014, 11:47pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/7 "2014-10-02T23:47:58Z")

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Also, try look into log viewer for errors:

Control Panel\All Control Panel Items\Administrative Tools\Event Viewer

Event Viewer (local)\Windows Logs\Application

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 3, 2014, 12:08am UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/8 "2014-10-03T00:08:17Z")

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Here it goes…

Fault bucket 115013774, type 22  
Event Name: RADAR\_PRE\_LEAK\_64  
Response: Not available  
Cab Id: 0

Problem signature:  
P1: UnrealEngineLauncher.exe  
P2: 1.8.0.0  
P3: 6.1.7601.2.1.0  
P4:  
P5:  
P6:  
P7:  
P8:  
P9:  
P10:

Attached files:  
C:\Users\kriegsheld\AppData\Local\Temp\RDRE96.tmp\empty.txt

These files may be available here:

Analysis symbol:  
Rechecking for solution: 0  
Report Id: fb3549e7-4a6a-11e4-9537-f46d04257973  
Report Status: 0

 ![16919-jpeglol.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/f/8/0f8cfb1d68708af1393c7b9d9a78f80af7633297.jpeg)

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<div class="post-metadata">

**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 6, 2014, 3:22pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/9 "2014-10-06T15:22:46Z")

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Bump?!  
No solutions til now?

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<div class="post-metadata">

**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 6, 2014, 8:10pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/10 "2014-10-06T20:10:31Z")

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Hi GameDesignHero,

Please follow the steps at the bottom of the linked page and post your ‘Verbose Logs’.

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from...

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 6, 2014, 11:39pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/11 "2014-10-06T23:39:36Z")

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Logs

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<div class="post-metadata">

**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 7, 2014, 2:06pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/12 "2014-10-07T14:06:24Z")

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Above you said that you tried the 64bit.exe, was it the .exe from this file path?

YourDrive:\Program Files\Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe

If you could, please try this .exe. If it still doesn’t execute then it isn’t a Launcher related issue and I’ll post back with more suggestions.

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 7, 2014, 2:09pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/13 "2014-10-07T14:09:55Z")

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I’ll tried to start the exe from Unreal Engine\4.4\Engine\Binaries\Win64\UE4Editor.exe… but anyway the same issue.

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**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 7, 2014, 7:16pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/14 "2014-10-07T19:16:01Z")

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I found another post that has quite a lot of troubleshooting steps that you could try, some of which you already have, just skip those.

> **[Win 7 UE 4.4.3 Closes during launch splash screen](https://forums.unrealengine.com/questions/101339/win-7-ue-443-closes-during-launch-splash-screen.html)**
>
> I can run the launcher just fine. But When I try to load the editor the Unreal Editor appears as expected, but the is just fades out after 3-4 seconds. Its not showing up in my task manager. I tried re installing many times and restarting. I check...

If nothing works, try getting the logs from the various locations that they list and the one below. Any .LOG or .DMP files will help us track down the issue.

C:\Users\AppData\Local\UnrealEngine\4.4\Saved\Logs

- Shift + Right-Click in the white space in that folder and select “Open command window here”.

- In the Console window that opens, type “UE4Editor.exe -stdout \> outputlog.txt” (without the quotes).

- That should create a file named outputlog.txt in that folder.  
and this one:

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<div class="post-metadata">

**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 7, 2014, 7:54pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/15 "2014-10-07T19:54:19Z")

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Click here for my OutPutLog.txt…

Tried all Solutions which are given there. Some I did before!  
Nothing helped again…  
that making me sad! I want to start my Project ;’(

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 8, 2014, 10:46pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/16 "2014-10-08T22:46:04Z")

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Even the new update for the UE Launcher cant be installed. This seems all rlly strange 😕

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<div class="post-metadata">

**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\
**Post date:** [October 9, 2014, 1:41pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/17 "2014-10-09T13:41:21Z")

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Can you look in this folder and post any logs you find?

\UE4\Engine\Saved\Logs\UE4.log

Unfortunately if you just disabled your antivirus or firewall that may not be enough. In some cases they will need to be uninstalled.

One program that we know conflicts is called PC Tools made by Symantec. If you have a copy of that installed, try uninstalling it.

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**Author:** ![GameDesignHero](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@GameDesignHero](https://forums.unrealengine.com/u/GameDesignHero)\
**Post date:** [October 9, 2014, 5:49pm UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/18 "2014-10-09T17:49:18Z")

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GJ!

Wow… This worked for me. I deinstalled PC Tools and it worked.

Thanks \<3

Epic Support from Epic Games!

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<div class="post-metadata">

**Author:** ![S-ed](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/s-ed/32/1194558_2.png) [@S-ed](https://forums.unrealengine.com/u/S-ed)\
**Post date:** [October 10, 2014, 10:00am UTC](https://forums.unrealengine.com/t/cant-launch-unreal-engine-4-4-3/295055/19 "2014-10-10T10:00:18Z")

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I think This one should be in system requirements, or in FAQ at least. =)
