disk is not bootable

hi,
I have a folder structure (see below) that is created after upgrade from W7 to W10.
In my previous question a day ago it was confirmed that it could be used for creating W10 installation media.
So I don't want to repeat how it was created. It was created automatically and it is 3GB in size.

My question:
I burned files and folders to DVD using native W10 burn files to disk method. The disk is not bootable.
The structure on the root of the disk is exact as in Windows folder on the pic. Did I miss the option for making it bootable?
Or it should be bootable just by burning the content to DVD?
Thanks.

Well, this is how you would do it with Windows 7:
How to create a Bootable DVD (Windows 7 or Windows Vista) - Cesar de la Torre [Microsoft] - BLOG - Site Home - MSDN Blogs


To me it would be much easier to just download a Window 10 ISO file that is already bootable.

I just think that this folder structure is related to my hardware.
Or just general W10 ISO will be valid for activation after my current W10 is activated after upgrade fromW7?
Could you provide the link to W10 ISO download?
From the other hand I created RecoveryDisk with system files. It is 3GB + and WIM is there. I guess this is actually a Swiss knife for the new installation (let say I replace HD and want to install fresh OS). Am I right?

found create installation media on MS https://www.microsoft.com/en-ca/soft...load/windows10
please confirm if RecoveryDisk with system files will be enough for new installation
Thx.

as NavyLCDR suggested it is clear that the best way for ISO or bootable media creation is MS tool in link that I mentioned in previous post.
I saved the ISO and yes there is an option for USB key creation.
The only question I have and going to test later today on similar laptop model (don't want to wipe out current install) is:
if the recoverydisk created on USB stick containing system files (3GB + in size) will allow to install CLEAN Windows.
In other words, is it equal to Windows 10 DVD? Just after boot process will go to Recovery menus.

Why I am asking ... to be sure that we can generate bootable and ready for clean install stick at any given time as soon as the system is in good working state ( in case there is no DVD).
I know that in 8.1 there was no option to have WIM file on recovery disk. Looks like WIM is clean image (as ISO).
Thanks to all.

you didn't get my point.
it is clear that what is downloaded (ISO)from MS is OS installation media.
I am asking about Recovery drive...
And just launched the utility again and see that my previous question is not accurate. Recovery Disk will allow not to install CLEAN Windows(as from ISO), but contains basically a backup of whole installation that is Super backup solution.
Want to try it. Also I did Windows backup on external HD that could be restored using Repair Disk or Recovery Disk that doesn't have system files.

Kyhi,
sorry I went back and forth with my "understanding" :) of recovery...
yes it could serve for bare metal install and not as FULL Windows backup.
But even this is super solution if there is no media and windows key.
The installation from recovery disk on the same machine will be activate automatically without need of KEY.

Thanks!
Michael.