Windows 8 and 8.1 Forums


How do i install Win7 on a Preinstalled Win8 laptop?

  1. #1


    Posts : 3
    Windows 8.1 64 bit

    How do i install Win7 on a Preinstalled Win8 laptop?


    I am looking to install Win7 Ultimate on my ASUS system and have 2 drives. I need win7 for work and really dont like 8 anyway. 8 was preinstalled. As you can tell from the screenshot i have a Virtual Clone drive (H: ) of the win7 iso. The BIOS has UEFI. Basically wanting to dual boot. I have been looking at the 7 & 8 forums trying to find a thread with this kind of install and no luck. What is the correct way to do this?

    Click image for larger version

      My System SpecsSystem Spec

  2. #2


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    Here is a great tutorial that can help you out for this: Downgrade Windows 8 to Windows 7 *edit* if you need to dual boot both 7 and 8, that may be a different story *SEE POST BELOW*
      My System SpecsSystem Spec

  3. #3


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    Sorry mate, here may be the correct tutorial: Dual Boot Installation - Windows 8 and Windows 7 or Vista

    Why would you want to dual boot 7 and 8? Meh, forgive my curiosity. Hope this helps, and take care
      My System SpecsSystem Spec

  4. #4


    Posts : 1,875
    Windows 10 Pro Prieview x64


    If you've got 8.1 pro you could boot 7 from VHD Windows 8 VHD - Create at Boot to Dual Boot with
      My System SpecsSystem Spec

  5. #5


    Posts : 879
    Windows 10


    If you only have the C: partition, you first need to shrink the C: partition in Disk Management -> LINK

    Windows 7/8 setup: Installing using Legacy BIOS Boot Mode or UEFI Boot Mode.

    Note: The following instructions will not work if your computer is not Windows 7 compatible, when you select UEFI Boot Mode (to boot from the UEFI: USB or UEFI: DVD) and try to install Windows 7 64-bit.

    You must disable Secure Boot, because it is not compatible with Windows 7.

    Secure Boot - Enable or Disable in UEFI

    If using a 64-bit Windows 7 installation USB flash drive.
    - Download and run the Rufus program.
    - Connect your USB flash drive.
    - Click on the browse icon and select your Windows 7 64-bit ISO image file.
    - Under Partition scheme and target system type, select GPT partition scheme for UEFI Computer
    - Under File system, select FAT32
    - Click on Start button.

    UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums

    - Connect your Windows 7 64-bit USB flash drive (or insert Windows 7 64-bit installation DVD).
    - Restart the computer.
    - Press the correct key to enter the boot menu (see this link for help).
    - Select your USB/DVD from the boot menu.

    Click image for larger version

    Note: You must select UEFI: USB or UEFI: DVD if the USB/DVD device showing twice in the boot menu, one marked UEFI and one not marked UEFI (see screenshot below).

    Click image for larger version

    On the Where do you want to install Windows? screen you'll see a list of all the partitions on the computer.

    Select the partition which you want to install Windows 7. Just make sure you do NOT select the partition where you have Windows 8 installed.

    Click image for larger version

    After Windows 7 installation you will choose which operating system you want to use (see screenshot below).

    Click image for larger version
    Last edited by genet; 05 Oct 2014 at 14:12.
      My System SpecsSystem Spec

  6. #6


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    I am looking to install Win7 Ultimate on my ASUS system and have 2 drives. I need win7 for work and really dont like 8 anyway. 8 was preinstalled.
    YES & NO, down to your UEFI/BIOS firmware setting.

    As this a OEM manufacturer's PC with Pre-installed Windows 8/8.1.

    1) Downgrade to Windows 7.
    Downgrade Windows 8 to Windows 7
    Warning you must have the UEFI/BIOS firmware setting in Step Three set.

    Make sure you read the NOTE at Step three.

    2) If Using a USB Pen drive on a PC with a UEFI BIOS.
    USB Pen drive need to be formatted to FAT32 as in
    UEFI Bootable USB Flash Drive - Create in Windows
    Take note of Step 11 for Windows 7.
    Also you will need to use a USB 2.0 port, as there are no USB 3.0 drivers in Windows 7.

    As you have updated to Windows 8.1, you will need to make a partition for Windows 7 x64 after the 350mb Windows 8.1 Repair tool partition.
      My System SpecsSystem Spec

  7. #7


    Posts : 3
    Windows 8.1 64 bit


    I dont have 8.1 pro..its just standard. And like i said before, i need 7 for work while i still want to keep 8.1 on the other drive. What any of you are not seeing is that i have ANOTHER 1tb drive and THATS the drive i would like to install 7 on. So all your answers are a bit confusing. I do not need to touch 8.1. Also...How do i find out if my laptop is 7 compatible?
      My System SpecsSystem Spec

  8. #8


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    What any of you are not seeing is that i have ANOTHER 1tb drive
    Set the UEFI/BIOS firmware to suit Windows 7 x64, then install.

    Click image for larger version
      My System SpecsSystem Spec

  9. #9


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    Go to your website for the laptop to find drivers for windows 7 to see compatibility (If they are available, they should be supported).
      My System SpecsSystem Spec

  10. #10


    Posts : 3
    Windows 8.1 64 bit


    Quote Originally Posted by theog View Post
    What any of you are not seeing is that i have ANOTHER 1tb drive
    Set the UEFI/BIOS firmware to suit Windows 7 x64, then install.

    Click image for larger version

    OK..I do a usb install?
      My System SpecsSystem Spec

Page 1 of 2 12 LastLast
How do i install Win7 on a Preinstalled Win8 laptop?
Related Threads
Hello Everyone, I'm here with a serious problem, i have a Laptop Asus X55M1 with windows 8.1 but i hate win8 and i want to install win7. I've tried everything and i can't format it. I have a USB Bootable Flash Drive (Pen) with win7 32 and 64 bits, i use it to format every computers and...
I posted in the wrong forum so I'll just post a link to the thread plus a copy/paste of the OP. Can't install Windows 8.1 or 7 on laptop - Windows 7 Help Forums Little backstory: Its a HP Envy laptop with a 1TB HDD running on windows 8. But the laptop has been having a lot of start-up errors...
Hello. I have an HP OfficeJet All-In-One V40 Printer, and I'm not sure why but I will print out pages perfectly on my Windows 7 Laptop, but not on my Windows 8 64bit Laptop. It either prints out part of the page or none of it and the printer ends up in an error state. Can someone help me fix this...
This forum is so much of wealthy info and thanks to you all for helping folks like me. Computer: New Lenovo Z580 Laptop with UEFI and Windows 8 Preinstalled What I did (did many things but this is what I remember): 1. Tried installing Ubuntu, lost partitions and Windows didn't boot either ...
I have a question on the best way to install Windows 7 as a dual boot on an existing Windows 8 installation on a new Asus Laptop. Most of the tutorials I've seen assume the pre-existing installation is Windows 7, and say that Windows 7 needs to be installed first, not an option when your Win8 comes...
So I just got a nice new hp envy dv7 7273ca laptop. It seems great really, wonderful 17.3" screen, beats audio, full keyboard, it's got it all. There's just one problem - windows 8. I've been trying to get acquainted with the newer OS, and I can't seem to do it. So I just figured I'd install win7...
Hi there, I've been using Win7 Ultimate 64x for sometime now and i have all my software Installed on it. I recently bought a copy of Win8 and I've been trying not to install it now because i haven't studied a lot of things about it it yet and i need to keep my PC in its current state because of...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook