Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Having serious trouble getting windows 7 gpt usb install to boot UEFI

23 Oct 2015   #11
trinsic

Windows 10 X64bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Expand the UEFI boot listing and post the options that are shown after
I'm pretty sure you'll see UEFI and legacy OPROM to choose instead of UEFI only.
The options are: UEFI and LEGACY.
No UEFI Only.


My System SpecsSystem Spec
.
23 Oct 2015   #12
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Did you burn the cd or is it a retail purchased ?
My System SpecsSystem Spec
23 Oct 2015   #13
trinsic

Windows 10 X64bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Did you burn the cd or is it a retail purchased ?
Retail Disk, it boots in another machine fine btw.
My System SpecsSystem Spec
.

23 Oct 2015   #14
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

My System SpecsSystem Spec
26 Oct 2015   #15
Margister

Windows 10 Home x64
 
 

I'm in a very similar situation:
I have:
-HP - Compaq 15 laptop
-Windows 10 Home x64 (that I want to keep, and have it dualboot with Win7)
-Intel Celeron N2840
-Unknown Motherboard
-F.31 BIOS, whatever that means
-8GB RAM
-Hard drive & partitions:
1TB GTP-partitioned HGST HTS541010A9E680
Partitions:
-650mb healthy unlabeled recovery partition (100% free)
-260mb healthy unlabeled efi system partition (100% free)
-835GB "Windows (C:)" healthy boot page_file crash_dump primary NTFS (83% free, Windows 10, want to keep)
-74GB "Windows 7 (W:)" healthy primary NTFS (100%, reserved by me for Windows 7)
-855mb healthy unlabeled recovery partition (100% free)
-21.25GB "Recovery (D:)" healthy oem partition (11% free, Windows 8 HP backup probably, want to keep)

-a Windows All-in-one ISO
-GPT-partitioned hard drive
-Disabled Secure Boot
-Disabled Legacy Mode in BIOS
-Set USB 3.0 in BIOS to Auto

I flashed the Win7 ISO onto my pendrive using the Windows 7 Download tool.
I disabled Secure Boot in order to load into it.
It was missing from the boot list, so I enabled Legacy Support to boot into it.
Booted into the ISO from USB
I got an error when at the custom installation\partition management screen about not being able to load the CD/DVD drivers or something, and a tutorial online led me to setting USB 3.0 to Auto, from Enabled.
I want to install the x64 version of Windows 7, alongside Windows 10.
The ISO booted up just fine, and I went through the Windows 7 installation process, but I could not install Windows onto my Windows partition (keep in mind I selected x64 Windows 7 Ultimate, some people say x32 Windows won't throw this error but I want x64) and when clicking on the details about why I cannot install onto that partition, I was told that the installation cannot proceed as this is a GPT-partitioned drive.
Keep in mind I want to preserve Windows 10 and all my files, therefore I won't clean the disk and repartition it.
Online I found sources which claim that in order to install x64 Win7 onto GPT I must run it in UEFI mode. I have acquired my Windows 10 boot file thing (whatever the name was, ended in fw.efi) from C:\Windows\Boot\Efi (I think) and I renamed it to bootx64.efi.
In Rufus, I selected the old windows 7 ISO (without /efi/boot/bootx64.efi) and when I chose "GPT on a UEFI system" or something along these lines, I was told that this is not possible as the ISO is not UEFI-bootable. Therefore, I extracted the ISO contents, inserted the bootx64.efi into /efi/boot/ (the boot folder I had to create) and then I created an ISO out of these files in MagicISO.
Rufus then allowed me to flash this ISO as GPT in UEFI system, and I quickformatted it, selected FAT32 and allowed it to have an extended label.
I attempted to boot into this ISO.
Without Legacy mode, I received an error (0x00000f?) stating that some file (something like system32\boot\...) could not be loaded. In Legacy mode, there were two options for the USB, so I chose the second one (as opposed to the first one which was UEFI USB) (both had the same name) which resulted in a screen with a semi-blurred font saying that no bootable media was found, press any key to continue.

I have previously managed to install Ubuntu 14 through this usb pendrive/flashdrive, with its own swap partition and ext3 partition without any problem. To delete Ubuntu I entered recovery, did 'bootrec /fixmbr' and deleted the Ubuntu partitions.

Some website also stated that I could loss-lessly convert my partition table from GPT to MBR, using MiniTool partition wizard, and when attempting to do so, I received the error that the system partition is on the drive I want to repartition and such action would render it unbootable.

Maybe if you try doing one of the things I did it will work out for you
My System SpecsSystem Spec
Reply

 Having serious trouble getting windows 7 gpt usb install to boot UEFI




Thread Tools




Similar help and support threads
Thread Forum
Dual Boot - Windows 7x64 UEFI Install BSOD on Reboot 0x0000007e
Hi all, So I got a new laptop its a Lenovo Y700-15ISK, UEFI Bios. I am trying to get the machine to dual boot Windows 7 and Windows 10. I installed Windows 10 first, no problem. Windows 7x64 is just not working. My windows 10 was a fresh install, slipstreamed updates and drivers from Lenovo...
Installation & Setup
Windows 7 won't install on GPT partition + Can't boot from USB [UEFI]
I've downloaded Windows 7 and made a bootable USB drive. I installed Windows on a couple of PC's and my HP laptop. I've noted that when installing on laptop, I've had some issues. In BIOS settings, the boot mode was selected to UEFI and no matter the boot sequence, it just wouldn't boot from USB...
Installation & Setup
Asus N76 UEFI - W7 64 Install Hangs on Logo (DVD UEFI Boot)
**** This issue has been resolved **** **** Look at Page 4, posts 4 and 5 **** **** You need to enable Legacy MBR by Enabling Launch CSM in the EFI Setup **** Hello all, This is my first post. I am a Windows 7 user and now (against my will) Windows 8. I bought an ASUS N76 laptop...
Installation & Setup
How to use UEFI boot to install windows 7?
Hello, I bought a 3TB harddisk and I can only use 2TB of it I read some forum and it said I have to install windows by uefi boot And change format from mgb to gpt so I can use 3TB My motherboard is Asrock H81M I want to know how can I use uefi boot, I am total idiot in computer, thanks for...
General Discussion
What's the benefit of UEFI and install Windows in UEFI mode?
I am not sure if this subforum is the right place, if not, pleases help me transfer to the right forum... I recently just build a new setup with Asus P8Z77-V LK, this motherboard comes with UEFI boot and legacy BIOS boot support. So I tested install windows 7 in both mode, and I didn't find...
Installation & Setup


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 21:56.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App