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: How to Windows 7 Partition restore to a Preinstalled Windows 8

23 Sep 2014   #1
furor

Windows 7 Pro 64-bit
 
 
How to Windows 7 Partition restore to a Preinstalled Windows 8

Hi guys

This is my first post. I have been googling for help and also attempted to search for relevant topics in the seven and eight forums but in vain.

This is what happened.

My laptop came with Windows 7 Pro 64-bit pre-installed with Windows 8 Pro 64-bit recovery discs. I shrank my windows 7 partition from 120 GB to 80 GB and did a clone to another hard disk. Then I use the Windows 8 Pro 64-bit disc to do a factory upgrade. Now I am running Windows 8 Pro and I shrunk the partition to 80 GB.
I have 140 GB partition remaining unformatted.

My question is, I want to restore the previously cloned Windows 7 Pro Partition to the unformatted partition in order to Dual Boot.

The problem is, the current disk is formatted as Windows 8 as GPT type and my Windows 7 Cloned partition (in external hard disk) is in MBR type. How can I achieve the dual boot options so that I can choose Windows 8 and Windows 7 during boot up?


My System SpecsSystem Spec
.
23 Sep 2014   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Did you clone the win7 partition to another physical drive... correct? It's one partition? or more?
My System SpecsSystem Spec
23 Sep 2014   #3
gregrocker

 

In order to use what you already have you'd have to clone the Win7 to another HD and set CSM enabled in BIOS setup to have both types of disks. Boot via BIOS. Or reinstall Win7 to
UEFI.

Or to preserve the cloned install wipe the HD with Diskpart Clean Command followed by command Convert MBR, clone the Win7 drive, then Clean Install - Windows 8 which should configure a Dual Boot with Win7. If not install EasyBCD to add Win7 to a Dual Boot menu.
My System SpecsSystem Spec
.

23 Sep 2014   #4
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote   Quote: Originally Posted by furor
My laptop came with Windows 7 Pro 64-bit pre-installed with Windows 8 Pro 64-bit recovery discs.
You will need to buy Windows 7 x64 or Windows 8 x64, as you only have one license.

Than istall both in UEFI mode, to dual boot.
My System SpecsSystem Spec
24 Sep 2014   #5
furor

Windows 7 Pro 64-bit
 
 

Hi guys

Thank you for your reply.

After some 4+ hours of last mile googling, I found a way to dual boot two pre-installed OS.

In fact gregrocker got it quite close, but in order for me not to reinstall Windows 7 as UEFI, I have to clone the partition back and use EasyBCD and VisualBCD to force it to load winloader.efi instead.
My System SpecsSystem Spec
24 Sep 2014   #6
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

You will still need to buy Windows 7 x64, as you only have one license.
My System SpecsSystem Spec
24 Sep 2014   #7
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by furor View Post
Hi guys

Thank you for your reply.

After some 4+ hours of last mile googling, I found a way to dual boot two pre-installed OS.

In fact gregrocker got it quite close, but in order for me not to reinstall Windows 7 as UEFI, I have to clone the partition back and use EasyBCD and VisualBCD to force it to load winloader.efi instead.
Of course you have to clone it back. Of course you have to add it to the boot menu.


Code:
bcdboot  p:\windows  /s q: /f UEFI
replace p with actual drive letter.
replace q with actual system partition drive letter.
My System SpecsSystem Spec
24 Sep 2014   #8
gregrocker

 

This command alone will convert a Legacy Win7 partition clone/image to EFI?
My System SpecsSystem Spec
24 Sep 2014   #9
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
This command alone will convert a Legacy Win7 partition clone/image to EFI?
That command add win7 efi to the bcd boot menu. Just like normal bcdboot command for add normal win7 boot entries. In fact you can modify a wrong entry manually.

Code:
 
Bcdedit /set {ID GUID}  path  \windows\system32\winload.efi
That's all you have to do. I did it a long time ago. I hope I remember the steps correctly(?)
My System SpecsSystem Spec
24 Sep 2014   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by furor View Post
Hi guys

Thank you for your reply.

After some 4+ hours of last mile googling, I found a way to dual boot two pre-installed OS.

In fact gregrocker got it quite close, but in order for me not to reinstall Windows 7 as UEFI, I have to clone the partition back and use EasyBCD and VisualBCD to force it to load winloader.efi instead.
Works?
My System SpecsSystem Spec
Reply

 How to Windows 7 Partition restore to a Preinstalled Windows 8




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Problems downgrading preinstalled Windows 8 to Windows 7 on ASUS Vivo
Hello. I think I'm losing my mind here and now I think I'm lost. Been googling and circling around for hours. So, I have an ASUS Vivobook laptop here, which has a preinstalled Windows 8. Now I'd like to downgrade to Windows 7, which I got thanks to my school having a deal with DreamSpark. So...
Installation & Setup
0x80070241 install Windows 7 to computer with Windows 8 preinstalled.
I have an Asus M11BB computer that is 5 months old that came with Windows 8 pre-installed. However, I would like to install Windows 7 on this computer as a Dual Boot, and I have the ISO burnt to a USB Stick. I can run the setup program both on startup by booting from the USB or while Windows 8 is...
Installation & Setup
How restore from backup without EFI partition - Windows 7 Pro 64 bit
I inadvertently backed up everything except my EFI Partition. Now, I need to restore my entire system. Is this possible? Where can I find instructions? Thank you..............
Backup and Restore
How do I restore the preinstalled windows7 in Vaio laptop after format
Hi everyone .. I have a problem in my vaio laptop i7, I used to have the preinstalled windows 7 home premium but i mistakingly formatted the recovery partition while installing Ubuntu 11.04 in the machine. Previously I have made 4 discs which are the recovery discs. The current problem is...
Installation & Setup
PreInstalled Windows 7 - Remove a new XP Partition From Dual Boot
I have a pre-installed Win7 machine. I recently made a dual boot system to add Xp however I no longer need Windows XP. Please can you let me know how to safely remove the XP partition?
Installation & Setup
how to partition Toshiba Laptop with windows 7 preinstalled
Hello, My friend bought a Toshiba laptop with 320GB harddrive and Intel i3 processor. It has windows 7 preinstalled.We used the recover mode and backed up the OS. The initial space (1.46 GB) contains the OS system files. We used the shrink option in Disk Management utility of the OS to...
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 01:14.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App