I've stumbled upon Gandalf50's blog, windowsmatters.com and he has a dual boot premade winpe x86/64 iso.
I'm gonna try adding gpu drivers to it as well as miners and see how it goes.
Check it out, looks pretty cool.
Have you used pnputil.exe to install drivers before?
I actually just tried it today, it's how I realized I could boot a x64 WinPE to a x86 machine.
pnputil.exe to install drivers, never tried that. I've gotten used to adding drivers through DISM...I have a feeling that it will only load previously installed drivers, not install them. If you're running it live it they certainly won't hold until next boot. I could be talking out of my ass here so let me know if it works