Installing 10 on an old BIOS system but Media Creation Tool failed

Is BIOS up to date? Latest BIOS is P6T SE 0908
P6T SE - Support

Windows can be installed in two ways: Legacy-MBR or UEFI-GPT
To install as Legacy-MBR you must boot the installation drive as Legacy
To install as UEFI-GPT you must boot the installation drive as UEFI.

The Windows installation has mainly 3 phases:
- Copy files from the installation drive to the target drive.
- Booting from the target drive and begin installation
- Creating the user profile.

To do a pre installation on another computer you install the target drive on another computer, boot the installation drive as Legacy or UEFI, and begin the installation. When it finish copying the files it will reboot. On the computer restart, shut down. Remove the drive and install on the computer.

I don't think that it will work. Win 10 and Win 7 has different boot managers. Your computer seems to be incompatible with Win 10 boot manager.

Try to find a BIOS update.

It seems that the ASUS P6T SE isn't compatible with Win 10
cant install windows 10 on asus p6t se - Google Search

Install Win 7 on the SSD and enjoy.
I still have and use Win 7. It is still may favorite OS.
For the updates use Single file with all updates - Simplix - Windows 7 Forums

I wonder if, when using the MCT, when the prompt/page comes up if making the choice to create for use on a 'different computer' instead of 'this computer' would make a change in what it will boot to. I've always used the "different computer" choice so haven't had occasion to check the difference.

I finally solved this issue, my Windows 10 is successfully installed in 22H2 and updated to 10.0.19045.3803 without issue. I almost gave up!

The more I tried different ways to create bootable media or install tricks, the more had I suspect it was something related to BIOS. Following @Megahertz suggestion, I searched and found there are people saying that P6T series BIOS doesn't support Windows 10, which is somewhat true. The P6T SE's Windows 10 "support" didn't even happen since the latest BIOS came out way before Windows 10, but it doesn't mean it cannot be used with Win 10. A user has pinpointed the issue to Intel VT-d, all one have to do is turn off Intel VT-d in BIOS. That's it, no longer hanging at booting into install program! There also are people saying they can install Windows 10, but only works with older version, like the Anniversary Update and older. But I've managed to install 22H2 and updated to 10.0.19045.3803 without issue.

Here is the VT-d setting path in BIOS:
Advanced > Chipset > Intel VT-d Configuration > Intel VT-d > Disabled

There is another setting regarding the virtualization technology, but you don't have to turn it off, you can leave it on:
Advanced > CPU Configuration > Intel Virtualization Tech

Special thanks to @Megahertz, @dalchina & @Berton! Thank you guys for keep digging into this issue with me, helped me to troubleshoot and rule out any possibilities!

Good find- well done.