Windows 10: Dual Booting 2 Windows Systems Using UEFI Boot Manager

I have just bought a new PC which includes 2 identical M2 SSDs. I have done a clean install on the first. I now want to know hiw to clone this to the second M2 and be able to select which system to boot using the UEFI Boot Manager not the Windows one. I want the two systems to be completely unconnected ie not using a shared boot manager, so that any hardware or software problem on the one system will not affect the other.Will simply cloning the partitions on my first windows system to the second M2 do the job, or are there things in the EFI partition that are system specific and won’t do

:)

 

Dual Booting

Please follow the steps in the tutorial for how to post the screenshot. I cannot even see Disk 0, 1 and 2 on the drive map, and the columns were not spread so i can see the labels in the listings above even though it lllustates how to do this.

As long as you don't have a UEFI install then you can move the boot loader to Windows 10 so that it manages the Dual Boot using it's menu, add the Dual Boot back from there. These same steps using EasyBCD should do it:

http://www.sevenforums.com/tutorials/209885-boo...

 

No Windows Boot Manager on dual boot system (7 & 10)


I thought I'd just post a little guide.

This is the only thing that worked on my ASUS N55SF dual boot system: Win7 on HDD (MBR) and Win10 on SSD (GPT).

Step 1
Assuming that you have already Win7 installed on your primary disk, install Win10 on your secondary disk.

Step 2
When install is done, enter your BIOS and go to the Boot section. There you should see "Windows Boot Manager" as your default boot option. Change it so that your primary disk (where you have Win7 installed) becomes your default boot option (it should be something like "P0:" followed by your disk model number, mine is "P0: ST9750423AS"). Save and restart.

Step 3
Now Win7 should start automatically (no boot manager showing up). Enter Win7, open an elevated command prompt and run
bcdboot X:\windows
where X is the Win10 system partition as seen from Win7, typically E, F, G or H.

Step 4
Restart. You should now see the Windows Boot Manager (probably the Windows 10 GUI boot manager). Select Windows 10, install your audio drivers (if you already have, I suggest you uninstall them and restart before doing this), restart and you're done.

 

Windows update rollback (with dual boot)

To boot WIndows 10 installed to UEFI there must be a Windows Boot Manager listed first in Boot Priority order. The Settings must also be set for UEFI enabled, SATA controller to AHCI.

I'd remove the Linux drives and set Windows Boot Manager first. If it isn't present yet that means it wasn't invoked during install. You can try running Startup repair on the WIndows UEFI hard drive from the Windows boot media.

More resources:
http://www.pcworld.com/article/2955460/operatin...

https://www.lifewire.com/install-ubuntu-linux-w...

Ubuntu