Desk top. I do have a large 4tereabyte external storage device. Direct play is checked under 'Legacy components' of Turn Windows components on or off. I just now installed windows media creation tool - how does this help? As for booting from a USB (storage device as well?) I have not tried this.
If you're using the 4TB external hard drive as a backup drive (that is, it has files on it that you need), then that drive wouldn't work. You'd need a hard drive with a SATA connection that you could wipe clean. (Your 4TB ext HD probably has a USB connection, which also wouldn't work.)
Here's how the process would have to go with the Windows Media Creation Tool (WMCT). You'd go to the Microsoft web site and download the WMCT ISO file for your setup (Win 10 Home 64-bit English). Then, you'd have to use a USB flash drive burning utility (like Rufus) to burn the ISO file onto the flash drive as a bootable drive.
Once you have your bootable flash drive with WMCT on it, you'd have to pull out your good Windows hard drive and install the blank spare hard drive. Then you'd have to turn on the PC and have it boot off of the bootable WMCT flash drive. (Each PC has a different procedure for booting to a bootable flash drive. You just have to learn the procedure for your PC.) Then you'd just follow the install instructions for a fresh Windows install.
P.S. - You said you already installed the WMCT. What did you install it to? Or did you just copy the ISO file to some location?
Interesting. I finished intsalling the win 10 updates. I now get the splash screen to install. I clik and give windows permission to install. NOW the CD rom spins for a considerable time AND I momentarily get what looks like the black CMD window briefly. Then NADA.
I wonder if there's a chance that your install disk is bad? Is there a chance that your disks are the same distribution as mine? (2-CD jewel case from Ubisoft). If so, maybe we could compare hash signatures.