Windows 10: Laptop. Windows 10, Trying to install W7. MBR / GPT issue

As stated before.........

 

OK, so I solved everything. For future viewers, I'll explain what solutions I used:

Problem: Wanted to Install W7 on a new laptop.
Solution: Don't. It's better of to get used to W10 and solve its problems.

P: Wanted to boot from external HDD
S: startup settings - uefi - secure boot = disabled, boot = legacy, boot order = external HDD

Problem: Deleted system partition when my only hope was a W10 ISO in an external HDD
Solution: WinToUSB

P: Once booted from external HDD, I wanted to copy the OS to a local HDD
S: Paragon Hard Disk Manager (migrate OS)

P: Internal HDD was read-only
S: in DISKPART, attributes disk clear readonly

P: Couldn't boot to uefi settings to change the boot order again
S: Internal OS disk needs to be GPT and not MBR.
In DISKPART: convert gpt
:
Here are the relevant DISKPART commands I used. DON'T USE THEM ALL, it's just a collection:

Code: diskpart list disk select disk [] detail disk online disk select volume [] detail volume clean create partition primary select partition 1 active (only works when disk is MBR) format fs=ntfs quick assign convert mbr / gpt attributes disk clear readonly[/quote] Hope that helps.