Windows 10: Windows 10 Dual Boot UEFI Missing or Shared Partitions on SSD2?

Dual Boot W10 + W8.1 installs using 2 SSDs. Any thoughts on why there are less partitions on SSD install #2?

SSD 1 W10 (installed first) C Drive:

- Recovery
- System
- Reserved
- Primary

SSD 2 W8.1 (installed last)

- Reserved
- Primary

Am I right in saying that install/SSD 2 shared the (Recovery, System) UEFI boot partition and that this is not good if I remove SSD1?

How do you prevent this on SSD #2, by physically removing SSD #1 when installing OS #2?

Appreciate any help.

:)

 

Grub 2 does not detect windows partition by osprober

Dear Don Cuthbert,

Thanks for your help.Since I was used to first dos partition to boot either windows or linux in dual boot on bios systems I thought UEFI just records the address to point to windows or linux sector for booting. Thought Microsoft system bootloader partiton contains
all files for booting and rest of files in windows 10 basic partition. As linux hanged on upgrade from Fedora 26 to Fedora 27 I wanted to delete UEFI which I thought is a UEFI linux loader as I am used to efibootmgr in Fedora and wondering why the osprobe
is not recognising windows.My basic thinking for GPT UEFI was wrong as I thought it just records the pointer to windows or linux.

But now you made the concept clear. Now I am sure I will be able to dual boot windows 10 and Fedora 27 with this help.

Really appreciate your help.

Dr Nagalkar

 

GPT MBR

I see. I tried dual booting in uefi mode but there are so many issues regarding booting so I experimented on my partitions and messed up. So I installed windows again deleting all partitions.

 

Yes, the only way to ensure that a clean install of Windows will not affect any other hard drives/SSDs with system partitions on them is to disconnect them when installing Windows to the drive you want it exclusively on. Unplugging either the data cable or the power cable is good enough.

 

Core lesson there, thanks a lot for confirmation, appreciate it.