Hi All,
Greets,
@
Ten20 :
1.
If you don't disconnect / Power off Disk 0 & proceed for win 7 installation on disk 1, you will be writing Win 7 boot material on Windows 10 disk ( Disk 0 ). It means that your win 7 disk ( Disk 1) will not boot independently. Your win 7 will always look for disk 0 to boot. It means if you detach Disk 0, you will not be able to boot into win 7. And if something happens to your win 10 disk, there are chances that you will not be able to boot into win 7 as well ( depending on the corruption )!
So,
Detach / turn off Disk 0 & then only go for Win 7 installation on Disk 1. It will make sure that all the boot material for win 7 is placed on Disk 1 only.
( In your case, you need a few steps before proceeding with win 7 installation on Disk 1!)
2.
That's not true. Your BIOS is good enough to carry both UEFI & MBR at the same time but certainly not on the same disk!
. Only the boot preference will come into play & that will be clear with a look on One Time Boot Menu Entries.
But...
Your BIOS is also good enough to carry both win 7 & win 10 in GPT. So, why to think about MBR ?
3. Power Options : Strange!
Are you logged in as Admin ? Just have a look on your snap & the one in tutorial, So much stuff / settings are missing !?
Attachment 409669
Attachment 409670
4.
Your BIOS is all good!
Windows 7 is not a full UEFI OS. The UEFI and Legacy setting should open the back door support for booting into a pure UEFI + GPT : Win 7 Installation Media!.
Now you would not hang at graphical startup in win 7 installation media.
Let's see how far we get. Shall we go ?
(i) Turn on the BIOS setting & save it :
UEFI and Legacy.
(ii) Make sure you can boot & work well in windows 10.
(iii) Try to boot into your Win 7 UEFI + GPT Installation Media. ( I would suggest using
Rufus &
USB 2.0 port )
Notes :
*We need not detach or power off any disk for / during this test.
**We are not going to make any installation right now.
***I would suggest using Rufus to make a pure UEFI Installation Media. In some ways, the made UEFI + GPT media is compatible with Legacy as well but we need to check pure UEFI. Otherwise it will always boot well in Legacy under this setting & the test is of no use!
****I would suggest use of untouched M$ Win 7 SP1 ISO.
***I would suggest use of USB 2.0 Port because Win 7 does not support USB 3.0 ports Out Of The Box.
5. What BIOS say when you try to select single option of UEFI & single option of Legacy. Does it allow enabling both at the same time ? In one BIOS, It was not saying clearly whether both can be enabled but there was option to enable both at the same time. That BIOS was not saying anything but it was UEFI First & Legacy Second!
This would be another setting to try if
4 ( above ) is not working.
Let me know.
Thanks & Regards. ...