Clean install - how to manually create the special partitions

And in the tutorial, you must delete all partitions in order for Windows to create the special necessary partitions (Recovery, MSR, MBR etc..)

You don't have to delete all partitions. As long as you leave the partition unallocated (excluded UBUNTU partition) then Windows should create all needed partitions.
NOTE: If you install Windows with UBUNTU already existed, Windows is not aware of UBUNTU. You would need to use EasyBCD to create a boot entry for UBUNTU for dual booting.

I want to clean install Windows 10, and I already did that before using the tutorial here.
But last time I did not have Ubuntu install.

Do you use Macrium to backup Windows ? If so, you don't need to re-install Windows. Just use Macrium to copy all Windows partitions back to the SSD/HD unless your Windows 10 does not function properly and you want to re-install.

NavyLCDR said:

If the computer has an UEFI bios with secure booting, will that work?

Never have any use for Secure Boot enabled so if it does not work, just temporarily disable it. I doubt if the OP has Linux installed on a GPT disk since it is more complicate to setup ie. creating extra partitions on Linux to set up to work with GPT disk.

Personally, I don't use dual boot, always set up Windows/Linux on separate SSD/HD with its own Boot Manager and use Boot Menu to boot from.