New
#11
I'm not following you. What F9 F10 boot switching options? If you did the same thing you did on the other computer, you should see the same results and be given a choice of which Windows 10 installation you want to boot.
win10 64..second drive
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New #12
Here is where I am.
I get a choice of the two drives when restarting but only the first default drive will start. If I choose the second drive it goes to the UEFI setup. If I the choose to start the second drive from there, it restarts itself to drive one.
thanks again...
I forgot to ask..Is it necessary to disable fast start in order to dual boot?Last edited by Burris; 09 Dec 2018 at 12:17.
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New #13
It sounds like the second drive does not have a valid EFI System Partition on it - or the system partition does not contain proper UEFI boot files. We can help more if you post a screenshot of disk management following this tutorial:
Disk Management - How to Post a Screenshot of | Tutorials
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New #15
Assuming that F: is the second installation of Windows that you are trying to boot:
bcdboot F:\Windows /d /addlast
That doesn't set up your dual boot menu?
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New #16
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New #18
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New #19
I still call it a Bios, I don`t even use UEFI, no point, no speed gain whatsoever, I like 1 partition for windows
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New #20
Not sure why your Disk 1 won`t boot, it looks like a good duplicate.
Navy will sort you out.
Did you try setting Disk 1 as the only bootable device and disable the other, see what happens.
You can always change it back.
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