Windows 10: Dual booting 10 with 8.1

[COLOR=rgba20, 20, 20, 1]Hi I have installed Windows 8.1 on a separate drive. Windows 10 already installed on my Dell desktop[/COLOR]

[COLOR=rgba20, 20, 20, 1] I have two questions :[/COLOR]

[COLOR=rgba20, 20, 20, 1]1. Do or should I disable fast boot and secure boot in Bios?[/COLOR]

[COLOR=rgba20, 20, 20, 1]2. I am using easy bcd to set up the dual boot option screen. Which bootloader should I use as default 10 or 8[/COLOR]

[COLOR=rgba20, 20, 20, 1]1?[/COLOR]

[COLOR=rgba20, 20, 20, 1]Any and all advise appreciated[/COLOR]

:)

 

Dual boot Windows 10 and Ubuntu 16.04?


Once I had Windows 10 RTM dual booting with Linux 17.2. No issue whatsoever.

Here is a tutorial on dual booting Win 10 and Ubuntu 15.04
http://www.linuxandubuntu.com/home/d...th-screenshots

 

Dual Booting with Windows 8.1


The procedure below will allow you to boot Windows separately or in dual boot configuration.
Here's what I recommend to do:

1. Disconnect the drive containing Windows 8.1
2. Install Windows 10 with one drive connected.
3. After step 2, reconnect the drive containing Windows 8.1
4. Boot up Windows 8.1. Open disk management and take a note of the drive letter of Windows 10 OS.
   NOTE: if you boot up Windows 10, then take a note of Windows 8.1 drive letter
5. Open Admin command prompt and type: bcdboot X:\windows where X: is the drive letter of Windows 10 (Windows 8.1 if you boot from Windows 10 in step 4)
6. Reboot the PC. You should have a dual boot screen.

NOTE: To break off the dual boot setting, Win+R->msconfig->boot and delete the none default entry on the list.

 

Can't install Windows 10 Technical Preview

mibaup was following a tutorial on TenForums:
Windows 10 - Dual Boot with Windows 7 or Windows 8 - Windows 10 Forums

I'm not sure why the tutorial uses those steps, but the author is well known for his attention to detail.