# I can not run unreal engin 4 launcher on windows 7 **URL:** \ **Category:** Getting Started & Setup\ **Tags:** unreal-engine, please-help-me, question\ **Created:** [March 8, 2015, 10:38am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934 "2015-03-08T10:38:36Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 8, 2015, 10:38am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/1 "2015-03-08T10:38:36Z")
Hi everyone, I had download and installed UE4 on my computer which runs Windows7, but I can’t run UE4 after I install it. I had uninstall it and install it again and again, but still I can’t run it. I had installed on my other computer and it could run on it, but this time I can’t. Please help me. ---
**Author:** ![anonymous\_user\_2ed5b4c7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2ed5b4c7](https://forums.unrealengine.com/u/anonymous_user_2ed5b4c7)\ **Post date:** [March 9, 2015, 9:57am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/2 "2015-03-09T09:57:39Z")
Hi! Read this > **[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... ---
**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:** [March 9, 2015, 8:48pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/3 "2015-03-09T20:48:03Z")
Hi samuelchan727, Just to clarify, you had installed the Launcher and an engine version but then you couldn’t open the editor. So you uninstalled the engine version and now you can’t re-install it again. Is that correct? ---
**Author:** ![anonymous\_user\_2ed5b4c7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2ed5b4c7](https://forums.unrealengine.com/u/anonymous_user_2ed5b4c7)\ **Post date:** [March 10, 2015, 7:44am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/4 "2015-03-10T07:44:02Z")
Your system is x64? ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 13, 2015, 11:46am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/5 "2015-03-13T11:46:52Z")
yes, my system is x64, and i could install the Launcher but i cant open it. ---
**Author:** ![anonymous\_user\_2ed5b4c7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2ed5b4c7](https://forums.unrealengine.com/u/anonymous_user_2ed5b4c7)\ **Post date:** [March 13, 2015, 11:56am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/6 "2015-03-13T11:56:28Z")
Firewall? Antivirus? try to temporarily disable their… And look in last log or attach it. C:\Users\XXXXXXXX\AppData\Local\EpicGamesLauncher\Saved\Logs ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 13, 2015, 2:07pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/7 "2015-03-13T14:07:45Z")
i had try to find the last log but i there were nothing in the file. ---
**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:** [March 13, 2015, 3:07pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/8 "2015-03-13T15:07:46Z")
Are you receiving any sort of error messages while trying to open the Launcher? Also, instead of the standard log files, follow the steps in [this section of that guide](https://wiki.unrealengine.com/Troubleshooting_Launcher_Problems#None_of_the_Above_Helped_-_Getting_Debug_Logs) to generate your Debug log files. Then post them here. ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 14, 2015, 12:27pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/9 "2015-03-14T12:27:51Z")
No, there were no error messages, I can’t even open the launcher. When I double click the icon, there were nothing happened ---
**Author:** ![Arcandoom](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Arcandoom](https://forums.unrealengine.com/u/Arcandoom)\ **Post date:** [March 14, 2015, 12:54pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/10 "2015-03-14T12:54:08Z")
Read this topic > **[Can't open UE4 launcher after installation](https://forums.unrealengine.com/questions/190362/cant-open-er4-launcher.html)** > > I have Installed UR4 . There was no error during installation. But after installation i can not open epic games launcher . Nothing show after clicking the installation. Please help me . Thanks in Advance ---
**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:** [March 14, 2015, 2:31pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/11 "2015-03-14T14:31:56Z")
Please post a copy of your dxdiag (system specs). Go to the Start menu and type ‘dxdiag’ into the search bar. Open that file and then click ‘Save All Information’. Post that text file here. ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 16, 2015, 10:38am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/12 "2015-03-16T10:38:28Z")
CPU: i5-4460 Ram:8GB graphic card: r7 260x ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 16, 2015, 10:47am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/13 "2015-03-16T10:47:52Z")
and also i had tried to open the launcher through the file, but it still didn’t work. I had installed service pack 1 on my windows7. ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 16, 2015, 12:11pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/14 "2015-03-16T12:11:53Z")
I will send the file later ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 17, 2015, 11:00am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/15 "2015-03-17T11:00:55Z")
link text ---
**Author:** ![Arcandoom](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Arcandoom](https://forums.unrealengine.com/u/Arcandoom)\ **Post date:** [March 17, 2015, 11:31am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/16 "2015-03-17T11:31:26Z")
Chek and update your video driver ---
**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:** [March 17, 2015, 12:36pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/17 "2015-03-17T12:36:55Z")
Hi samuelchan727, Could you try these 2 suggestions from Tartal? ---
**Author:** ![samuelchan727](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@samuelchan727](https://forums.unrealengine.com/u/samuelchan727)\ **Post date:** [March 20, 2015, 8:11am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/18 "2015-03-20T08:11:04Z")
I had been try that two suggestions but neither of them work ---
**Author:** ![Arcandoom](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Arcandoom](https://forums.unrealengine.com/u/Arcandoom)\ **Post date:** [March 20, 2015, 8:25am UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/19 "2015-03-20T08:25:17Z")
BIOS: BIOS Date: 01/15/15 its ok? plz dxdiag again ---
**Author:** ![gmpreussner\_1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gmpreussner\_1](https://forums.unrealengine.com/u/gmpreussner_1)\ **Post date:** [March 20, 2015, 7:20pm UTC](https://forums.unrealengine.com/t/i-can-not-run-unreal-engin-4-launcher-on-windows-7/309934/20 "2015-03-20T19:20:02Z")
Your dxdiag does not show any 3D graphic cards, only an onboard VGA adapter. Have you properly installed the drivers for your Radeon card? Try these: [http://support.amd.com/en-us/download/desktop?os=Windows+7+-+64](http://support.amd.com/en-us/download/desktop?os=Windows+7+-+64)