changing from 32 bit to 64 bit home version

My sons computer has a legit copy of windows home but for some reason the installed version was 32 bit, I noticed later that the machine was x64 bit processor.
I installed windows ten prior to noticing the version, I would like to change it to x64 bit, I read a few threads on converting, I downloaded the x64 ISO and burnt it to a DVD.
I am not concerned about wiping the drive clean everything needed has been removed and copied.

I read about skipping the key as it is being installed and that a key would be issued by Microsoft based on the hardware of the machine.

I am curious, would the key for the original 32 bit installation be the one that would be inserted in the x64 bit install or would a different key be issued?

curious

I went as far as step five, When I ran the file as administrator I got the message that " this app cannot run on your PC"

The computer was booted running the upgraded 32 bit windows 10 and the ISO was the downloaded x64 version I extracted the gatherosstate.exe file from.

Maybe that was the reason?

Is there a way I can identify what version the ISO is that I downloaded using power ISO

I am sure it was the X64 Home version

Tacit said:

I went as far as step five, When I ran the file as administrator I got the message that " this app cannot run on your PC"

The computer was booted running the upgraded 32 bit windows 10 and the ISO was the downloaded x64 version I extracted the gatherosstate.exe file from.

Maybe that was the reason?

Is there a way I can identify what version the ISO is that I downloaded using power ISO

I am sure it was the X64 Home version

A tip: I have downloaded versions of Linux LiveDVD .iso files both to compare with WinXP for folks who are looking for a change or running older hardware and to boot to in verifying whether the hardware is 32-bit or 64-bit. Mostly I use the 64-bit disc as 32-bit software can run on 64-bit hardware but not the other way around.

Tacit,

Brink pointed you to the wrong tutorial. Since you have already upgraded to Windows 10 and have an activation stored on the server, the tutorial you want is:
Windows 10 - Clean Install - Windows 10 Forums

The Windows 10 Home product key for both 32-bit and 64-bit is:
YTMG3-N6DKC-DKB77-7M9GH-8HVX7

Thanks for the help.
I cleaned off the drive after I created the home version x64 DVD and installed it.
Windows 10 Home x64 installed and activated.