Windows 10: Laptop. Windows 10, Trying to install W7. MBR / GPT issue
I am confused now. Let's get back to basics.
1) Are you trying to install windows 10 or 7.
2) you cannot just clone a windows to go drive to an internal drive to install windows 10 as it will not boot properly.
3) you need a usb flash drive or dvd to install windows on a pc.
4) you may need to nuke existing internal drive using diskpart clean command or a tool like dban in some cases.
Use Windows PE
Not Windows To Go (which is Locking the internal disk)
use any one of my Bootable PE Rescue Disks...
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
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:
Hope that helps.
select disk 
select volume 
create partition primary
select partition 1
active (only works when disk is MBR)
format fs=ntfs quick
convert mbr / gpt
attributes disk clear readonly
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