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Windows 7: [URGENT] Windows 7 + Windows 8.1 Dual boot

18 Jun 2016   #1
ik0uuu

Windows 8.1 64bit
 
 
[URGENT] Windows 7 + Windows 8.1 Dual boot

I currently have UEFI Windows 8.1 installed on a 1TB drive, formatted in GPT. This has created an issue when trying to install W7 - it doesn't play nice with UEFI...

UEFI Bootable USB Flash Drive - Create in Windows

I've followed this tutorial in order to create the USB drive with Rufus (UEFI Bootable).

Can I simply shrink the partition my W8 is installed on by say, 200GB, and then select the unallocated space in the W7 installer to install it in UEFI mode? (Have to install with UEFI due to GPT drive). Or can I not dual boot them both in UEFI mode? Will selecting the unallocated space and installing W7 in UEFI ruin my W8 installation?

Before you suggest I simply delete all the partitions on the drive and start from scratch - this is NOT an option.


My System SpecsSystem Spec
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18 Jun 2016   #2
DavidE

Multi-Boot W7_Pro_x64 W8.1_Pro_x64 W10_Pro_x64
 
 

Quote   Quote: Originally Posted by ik0uuu View Post
Before you suggest I simply delete all the partitions on the drive and start from scratch - this is NOT an option.
Can you add another blank drive for Win 7 ?
See this tutorial:
UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with
My System SpecsSystem Spec
19 Jun 2016   #3
Osprey

Windows 7/10
 
 

Quote   Quote: Originally Posted by ik0uuu View Post
Can I simply shrink the partition my W8 is installed on by say, 200GB, and then select the unallocated space in the W7 installer to install it in UEFI mode?
Yes.

Quote   Quote: Originally Posted by ik0uuu View Post
Will selecting the unallocated space and installing W7 in UEFI ruin my W8 installation?
No.

Note: Windows 7 is not compatible with Secure Boot and you can't boot from a Windows 7 DVD/USB if Secure Boot is enabled in UEFI settings.
My System SpecsSystem Spec
.

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 [URGENT] Windows 7 + Windows 8.1 Dual boot




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