Thank you USAFRet
Makes sense. I might contact Asus and ask them where the Recovery/Factory installation can be found and backed up. I looked in the manual just now and didn't see anything about it.
Once the Secure Erase has worked its magic, I guess you then boot and re-install Windows 10 using a USB/flash memory stick?
Have you ever done a Secure Erase on an SSD? Have you used Parted Magic before (or can suggest/recommend another program that is safe to use)? I presume doing a Secure Erase does not damage SSD in anyway (like a typical 'DBAN' would on an SSD)?
You can tell if that Factory Reset partition still exists. Look in Disk Management to see what partitions are there.
But it looks like you did, and it does not exist.
If there was a previous OS on it and then Upgraded to Win 10, likely that partition is long gone.
But looking at Disk Management would tell for sure.
Secure Erase? Yes, done it on a couple of Samsung drives.
After its done, the drive needs to be Initialized, Then its ready for the OS to be installed.