Windows 10: How to dual boot Windows 7 ON Windows 10

Here are the things that should be taken into consideration:

• Windows 10 currently installed
• UEFI (Legacy/BIOS is supported but I do not prefer using it as it may cause more problems in the future)
• 1 Hard Disk Drive

Goals:

• Install Windows 7 on another partition
• Maintain my current Windows 10 installation
• NOT have to switch to Legacy/BIOS mode

I found this: https://www.tenforums.com/tutorials/2...ndows-8-a.html
But it assumes a Windows 7 installation and subsequently dual booting Windows 10 on it. What I would like is essentially the opposite.

:)

 

Windows 10

Review information about how to downgrade or dual boot Windows 8.1 with your Windows 10 installation if it is supported:

How to Downgrade Preinstalled Windows 10 to Windows 7/8.1

How to: Dual
Boot Windows 7 or Windows 8 with Windows 10 Installed First

 

windows 10 vs windows 7

If there are supported Windows 7 drivers, yes, you can dual boot, learn how:

How to:
Dual Boot Windows 7 or Windows 8 with Windows 10 Installed First

 

It seems that the HDD is already a GPT one.

You may follow these steps:

• Make a UEFI bootable Windows 7 installer. UEFI Bootable USB Flash Drive - Create in Windows
• Restart the computer with the installer attached.
• Press the Boot menu key during restart. Choose the UEFI boot option as described in Point 4 here:
  UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums
• Set the target partition to install Windows 7 to another partition than that of Windows 10.
• Complete installing Windows 7.

Hopefully your project will be completed.

 

Prior to doing post #2 you will have to shrink the existing Windows 10 partition to make room for an NTFS primary partition to install Windows 7 to. I recommend MiniTool Partition Wizard Free for that.

Best Free Partition Manager for Windows | MiniTool Partition Free

 

That's the thing. I did that and when it starts to load up on the Windows Logo (the Windows 7 logo startup animation with the four orbs combining to make a Windows logo) it freezes. All the solutions I could find about that problem involves switching back to Legacy. I could have just posted that as my problem but I was hoping someone would post something that does not use that method.

New Problem: How to boot Windows 7 installation in UEFI
Alternatively, How to install Windows 7 without using standard install method

 

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums

The only difference is that your disk should already be GPT so don't delete all the existing partitions on it - just pick the empty NTFS partition that you created for Windows 7 to install to.

 

Can you please post a screenshot of the disk management window?

Disk Management - How to Post a Screenshot of - Windows 10 Forums

 

Windows 7 does not support uefi secure boot, so you may need to disable uefi secure boot feature in bios.

 

I have done it! I apologize for wasting your time.
The reason why I do not want to use Legacy was because there would be some error that would not allow me to install it unless I completely rebuild the HDD from scratch. I don't know what happened but this time it seemed to allow me to install it now.


I used the Windows 7 UEFI install via USB which used the rufus software and to extract the installer to the Flashdrive. I simply switched to Legacy mode and everything went fine. I have now effectively dual booted Windows 10 and Windows 7. Thank you all for your time and effort.