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Windows 7: How to prevent Windows 7 installation from booting in UEFI mode?

07 Jun 2016   #1
Bullet Tango

Windows 7 Ultimate x64
 
 
How to prevent Windows 7 installation from booting in UEFI mode?

Hi there. I've built a brand new HTPC and it has UEFI BIOS on it. I've tried to install Windows 7 with USB drive that I've made UEFI bootable with Rufus, but it gives me blue screen everytime after Windows goes from "Windows files are loading" screen to a Windows logo animation. The hard drive that I'm using is set to MBR, (I know that I should set it to GPT for UEFI installation). I don't want to have a UEFI version of Windows in my system anymore. How do I install legacy version of Windows 7 from USB stick on UEFI BIOS capable PC with HDD using MBR?


My System SpecsSystem Spec
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07 Jun 2016   #2
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi and welcome to SevenForums,
Enter your bios and go to Advanced and boot and disable secure boot,
If there is no option to disable secure boot look for OS Type and switch to Other os
After installing Microsoft Update KB3133977 for Windows 7, some users may encounter a "Secure Boot Violation" , which makes the system fail to boot into the operating system.
My System SpecsSystem Spec
07 Jun 2016   #3
Bullet Tango

Windows 7 Ultimate x64
 
 

My UEFI BIOS has the Secure Boot option. I have disabled it.
My System SpecsSystem Spec
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07 Jun 2016   #4
Bullet Tango

Windows 7 Ultimate x64
 
 

Can someone tell me if I need to use MBR partition scheme for BIOS or UEFI-CSM, or MBR partition scheme for UEFI for legacy installation of Windows?
My System SpecsSystem Spec
07 Jun 2016   #5
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
I use mbr but I also use Rufus non uefi option in the booting too
Rufus has uefi compatibility but I wouldn't boot to that listing if on mbr
Only if using gtp or what ever it is
USB Windows 7 Installation Key Drive - Create
My System SpecsSystem Spec
07 Jun 2016   #6
Bullet Tango

Windows 7 Ultimate x64
 
 

I've made my USB drive with Windows installation with MBR partition scheme for BIOS or UEFI with no luck... I've disabled Fast Boot, Secure Boot options in the UEFI BIOS. I've set that only legacy drives would show up.
My System SpecsSystem Spec
07 Jun 2016   #7
Bullet Tango

Windows 7 Ultimate x64
 
 

I also found that to make sure that you won't boot in UEFI mode, you can delete "efi" folder from installation root on your media. I'll try that. Pictures shows what settings I use for making the USB drive.


Attached Thumbnails
How to prevent Windows 7 installation from booting in UEFI mode?-rufus.jpg  
My System SpecsSystem Spec
07 Jun 2016   #8
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
The disk it's self might need to be reformatted
Convert GPT Disk to MBR Disk

Otherwise just boot to the device and not to a uefi listing in the boot list usually works for me
Plus do not create a partition to install on
Just clean the entire hdd and install on it
You can resize the C drive later
Which is the way I like it with No 100mb system reserved partitions only the C drive
My System SpecsSystem Spec
07 Jun 2016   #9
Bullet Tango

Windows 7 Ultimate x64
 
 

Thank for your reply TrashZone, I've solved my problem. My HDD was set to MBR. I've made bootable USB stick with settings that you can see in picture above. While Rufus was busy I've changed SATA cable from one MoBo port to another and RAM stick from one slot to another. Surprise, surprise... After 6 days of headache I've get it working.
My System SpecsSystem Spec
07 Jun 2016   #10
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Good deal
My System SpecsSystem Spec
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 How to prevent Windows 7 installation from booting in UEFI mode?




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