Windows 10: Reinstalling-Clean Install from CD iso-after a botched return to Win7

A friend could not get the AU version to install on his laptop in Sept. He knee jerked and had Win7 clean reinstalled. I think he didn't double check that Win7 needed to be activated so now his Win7 is not in full status. Somehow he cannot make the step to contact Microsoft. I have no idea what the issue is but now he reports that Win7 is not doing well.
The current plan is to reinstall Win10 as a clean install via inserting a CD and using the setup.exe.
I'm downloading the win10 iso and burning to a cd. I don't know if his system is a legacy or UEFI. Its an older laptop.
I cannot count on his knowing how to get into the bios to change boot order to a usb so I figure using the cd setup.exe to get the Win10 install going will work.
I cannot tell what exactly is in this iso as it downloads through Media Creation tool so I am assuming that the Oct/Nov updates will have to take place after the install.

I'm just double checking that this clean install via the CD will not need the Rufus boot disk.

:)

 

Once I receive my free upgrade to Windows 10, will I be gettin a new CD-Key and a Win10 ISO file?

The offer is nice, but one big question remain on clear to me is that: Once I receive my free upgrade to Windows 10, will I be getting a new CD-Key and a Win10 ISO file?

Because after the 1 year upgrade period what will happen if my HDD goes bad and I want to reinstall Win10 on a new HDD or SSD?

I re-install win7 then ask to upgrade to win10 again?

orr

I found an ISO of Win10 and use my Win7 CD key to install it (if possible)?

or

else?

 

windows 10 clean install, where to get product key

I believe you were supposed to upgrade to windows 10, then it would verify your win7 key and store it as a legit copy..Then you are supposed to do a clean install if you wanted. since you just installed from iso without upgrading. i say maybe try to reinstall
win7 activate it, then wait for upgrade. then maybe you can clean install.

 

I'm assuming that you realize Windows 10 won't fit on a CD, it needs a DVD. To make a DVD from the ISO file, if you are running Windows 10 all you have to do is right click on the ISO file and select Burn disc image. Then to do a clean install you have to boot the computer from the DVD, you can't just run setup.exe from it from within the OS - that will only do an upgrade.

 

Yes its a DVD. I also have Imageburn software that will burn an iso and create a setup.exe file.
When I read the tutorials I did not see words that said ' you have to boot the computer from the DVD'
So to do the boot from the DVD to do a clean install requires the Rufus info to be on the DVD along with the downloaded IS0
Somehow I translated the install tutorial to have the choice of clean install once the iso is mounted.
There is an emphasis on using the USB source versus similar step by step when using a disc(DVD)

 

No, that is completely false. RUFUS is not required to make a Windows 10 bootable DVD.