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Windows 7: Installing Windows 7 and 8.1 on the same system

08 Oct 2014   #1
rmk9785e

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
Installing Windows 7 and 8.1 on the same system

I recently purchased a Dell Inspiron 3847 with Windows 8.1 64 bit installed on its HDD. I wanted to use it as a dedicated Windows Media Center HTPC which comes bundled with Windows 7 Pro so I added a 128GB SSD as the boot device and installed Windows 7 Pro 64 bit. Is there any way to setup the system to have options to select one of these operating systems at every boot so I can occasionally boot from Windows 8.1 and keep it patched/current?


My System SpecsSystem Spec
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08 Oct 2014   #2
Dude

Windows 10 Pro X64
 
 

Hello, have a look here on how to dual boot 7 and 8

Dual Boot Installation - Windows 8 and Windows 7 or Vista
My System SpecsSystem Spec
09 Oct 2014   #3
rmk9785e

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Thank you so very much for pointing me to this detailed solution.
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09 Oct 2014   #4
Dude

Windows 10 Pro X64
 
 

You're welcome. Post back and let us know how it works for you.
My System SpecsSystem Spec
09 Oct 2014   #5
gregrocker

 

Did you already install Win7, and if so did you unplug the WIn8 drive during 7 install? If so you can boot your choice of HD's via the BIOS Boot Priiority order (7) or if you want 8 the BIOS Boot menu key at boot. If this isn't to your liking you can add 8 to a Windows Boot Menu from Win7 using EasyBCD (click Download - no Name or Email required).

But let us see a screenshot of Disk Management - Post a Screen Capture Image first so we can be sure.
My System SpecsSystem Spec
10 Oct 2014   #6
rmk9785e

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Did you already install Win7, and if so did you unplug the WIn8 drive during 7 install? If so you can boot your choice of HD's via the BIOS Boot Priiority order (7) or if you want 8 the BIOS Boot menu key at boot. If this isn't to your liking you can add 8 to a Windows Boot Menu from Win7 using EasyBCD (click Download - no Name or Email required).

But let us see a screenshot of Disk Management - Post a Screen Capture Image first so we can be sure.
Yes, I unplugged the original Win8 HDD while installing Win7. Attached is the Disk management image. In BIOS boot options, the 1st boot device is [Internal ODD Device] and the 2nd boot device is [UEFI:Windows Boot M...].
I created a partition on the HDD to store my media and assigned it as the D drive. I believe the Win8 partition is the Q drive.


Attached Thumbnails
Installing Windows 7 and 8.1 on the same system-disk_mgmt.jpg  
My System SpecsSystem Spec
10 Oct 2014   #7
Djohhan

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by Dude View Post
Hello, have a look here on how to dual boot 7 and 8

Dual Boot Installation - Windows 8 and Windows 7 or Vista
Thanks Dude
My System SpecsSystem Spec
10 Oct 2014   #8
gregrocker

 

Are you able to boot into Windows 8 now?

The BIOS boot for a secondary UEFI drive may not be achievable since it is booted by Windows Boot Manager.

Since both are UEFI installs which are to be booted from Windows Boot Manager unless you can find a wayin the BIOS to choose another HD to trigger its Windows Boot Manager, the best way for your to add Windows 8 to a Dual Boot menu may be to install EasyBCD (click Download - no Name or Email required) to add Windows 8.

Let us know how this goes.
My System SpecsSystem Spec
17 Oct 2014   #9
rmk9785e

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Thank you. I don't have a second drive to boot option in BIOS. If I were to remove the Windows 7 SSD and boot from Windows 8, would I be able to use its boot manager to add the Win7 drive?
I'll give EasyBCD a try this week and provide update.
My System SpecsSystem Spec
17 Oct 2014   #10
gregrocker

 

Why do you need Windows 8? I'd just wipe the drive with Diskpart Clean Command and use it for storage.

If what you're asking is if you add Win8 to a Dual Boot menu from Win7 using EasyBCD can you unplug either drive and have the other still boot, normally you would but since every UEFI BIOS is different you'd need to test it to be sure.
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 Installing Windows 7 and 8.1 on the same system




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