This video is created to contribute to the following Reddit thread - https://redd.it/ar5ofx
You may see the process of creating WinPE-based media with custom driver (in this example - Dell PERC H710 RAID Controller):
1. Install Bootable Media builder.
2. Install WinPE for Windows 10 (1803).
3. Download and extract required drivers.
4. Create WinPE media.