For business customers only  

Permissions issues can frequently block the launcher from creating the files it needs, causing the progress to stall.

Here is a comprehensive guide to getting your downloads moving again. 1. Check if the Launcher is "Writing" to the Disk

Close the launcher and ensure it isn't running in the background.

It’s a frustratingly common sight: you’re ready to jump into a new game, but your or 0%. While it often looks like nothing is happening, this issue usually stems from the way the launcher manages data or how your system interacts with Epic's servers.