# getting a error failed to download assets session launch

**URL:** <https://forums.unrealengine.com/t/getting-a-error-failed-to-download-assets-session-launch/1637057>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, bug-report, question, fortnite\
**Created:** [January 23, 2024, 5:11pm UTC](https://forums.unrealengine.com/t/getting-a-error-failed-to-download-assets-session-launch/1637057 "2024-01-23T17:11:35Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\
**Post date:** [September 24, 2024, 7:13pm UTC](https://forums.unrealengine.com/t/getting-a-error-failed-to-download-assets-session-launch/1637057/5 "2024-09-24T19:13:43Z")

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Hi,

> [@John\_V](#):
>
> Check your Windows Defender. It may be blocking access. This is what I found and it worked!

Good idea There is an article about that in the past and how to add an Exception in Windows Defender  
[urc.exe and urc.dll get flagged as Malware from Microsoft Defender](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/2)

Remember to [Verify UEFN](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5) your installation afterwards other Anti-Virus products will have other ways to add exceptions

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