Is that still the only practical way to do it for a single stand-alone build?
I came in here expecting someone to explain the imaging process of how OEMs do this kind of stuff
Given the context of his question, I didn't think that was necessary to elaborate.
But the big OEMs, install software, updates, customizations to a Windows install, and then use SYSPREP, and then they take a disk image using cloning software. To mass-produce computers, they use special HDD-duplication machines. It has a copy of the OEM HDD image on an internal HDD, and then you plug multiple HDDs into it, and it places the OEM HDD image on all of the target HDDs.
Corporations may also use Acronis or Norton Ghost Enterprise to "image" PCs, which works mostly the same way. Either a local bootable device with the imaging software, or a PXE boot over the network, and then it pulls the HDD image over the network from a server somewhere, writes it to the local PC's HDD, and then you reboot into the OS on the HDD.
Edit: PS. Moderators routinely edit posts to put in "Moderator comments". That's how moderation works. Complaining about it will just get you in hot water with the Mods around here. And speaking member to member, your aggressive posting style doesn't jive with the ideals of this forum's community, and I don't expect that you will last long around here, unless you can tone it down a bit.