# Epic Launcher doesn't start on W10 64bit! (0xc000007b)

**URL:** <https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203>\
**Category:** Platform & Builds\
**Tags:** unreal-engine, crash, 0xc000007b, UE4, question\
**Created:** [October 17, 2017, 3:47am UTC](https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203 "2017-10-17T03:47:23Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![eatmylazer](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/eatmylazer/32/1005272_2.png) [@eatmylazer](https://forums.unrealengine.com/u/eatmylazer)\
**Post date:** [October 17, 2017, 3:47am UTC](https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203/1 "2017-10-17T03:47:23Z")

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Hello everyone!

I tried everything and still didn’t managed to get it to work. Please, can someone take a look to me to the DWalker log file and tell me what should i do to fix it? I’m seriously out of ideias in what i should do to make it right

- Tried reinstall in a different folder
- Tried Reinstall all C++ and DirectX
- Tried to run a generic missing dll program
- Tried DWalker and the other diagnosis similar to it (forgot the name) but can’t see anything out of order

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**Author:** ![eatmylazer](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/eatmylazer/32/1005272_2.png) [@eatmylazer](https://forums.unrealengine.com/u/eatmylazer)\
**Post date:** [October 17, 2017, 3:53am UTC](https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203/2 "2017-10-17T03:53:37Z")

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![216906-01.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/8/7/e8728daaa611d8c094ce1c864ebe8e15d17edbe1.jpeg)

 ![216908-02.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/8/7/18715f1ebe55c49a072dd9b25738bdb19c5a75da.jpeg)

 ![216909-03.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/5/7/f57280854ea8f17c205b9a0dd81f93dadbce4d72.jpeg)

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<div class="post-metadata">

**Author:** ![eatmylazer](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/eatmylazer/32/1005272_2.png) [@eatmylazer](https://forums.unrealengine.com/u/eatmylazer)\
**Post date:** [October 19, 2017, 3:03pm UTC](https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203/3 "2017-10-19T15:03:23Z")

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Bump

Please help

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**Author:** ![LynxVolt](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LynxVolt](https://forums.unrealengine.com/u/LynxVolt)\
**Post date:** [December 8, 2017, 7:57pm UTC](https://forums.unrealengine.com/t/epic-launcher-doesnt-start-on-w10-64bit-0xc000007b/407203/4 "2017-12-08T19:57:34Z")

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I did it, I downloaded the installed files from the PC where the unreal was working and substituted its own.And it worked.(only need to replace your files with the working of unreal engine.)