So I've been trying to get ReactOS installed on the Windows QEMU build from https://qemu.weilnetz.de/ and during the file copy part of the first stage installer the thing, slows down. Substantially. And then silently comes to a standstill. I'm not sure whether this is an I/O issue in ReactOS or what, the old qemu that we used for the older 0.3.x releases didn't have this problem. Anyone have any ideas?