Windows 10: I have a dual boot with win7 & 10.

Well I started to use the crappy one {10} since you aren't going to support your best product ever. Well as soon as I got using it for first time it crashed. And now I can't get either os to work. And I also forget how to change the command prompt. And what drive will my cd drive be with both os on drives B & C.

:)

 

How to Clone 'dual boot' Win7/Win10 HDD to new SSD

Hi Jackos,

Thank you for posting your query on Microsoft Community.

I suggest you to create a system image of Win7/Win10 and apply it to SSD.

To create system image on Windows 10 follow the below steps.

• Type File history in the search area on the taskbar and select File history.
• Click on System image backup on the left bottom corner of the Window file history Window.
• Click on Create System Image on the left panel of the System Image backup windows.
• Select the driver, where you want to create system Image.
• Follow on screen instruction.

If you want to perform a dual boot you can refer to the below link and check if it helps:

How to Dual Boot Windows 10 with Other Versions of Windows, macOS and Linux

Please let us know if you face any issues with Windows.

Thank you.

 

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.

 

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.