Windows 8 and 8.1 Forums


Dual Boot Windows 7 and Windows 8 - Delete Windows 7

  1. #50


    Posts : 22
    win8


    But I thought a full win 8 pro disk could over-write (update) the native win 7 drive. Why would I need a win 8 partition that was created after the fact on an original win 7 laptop? Am I missing something?

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  2. #51


    Posts : 26
    Win XP, Win 7, Win 8, Win 8.1


    Quote Originally Posted by Shawn View Post
    Gilgamesh: thank you for the suggestion. Unfortunately, I went into win 7 and wiped and merged the win 8 partition into win 7 so I have not win 8 partition data.
    Quote Originally Posted by Shawn View Post
    But I thought a full win 8 pro disk could over-write (update) the native win 7 drive. Why would I need a win 8 partition that was created after the fact on an original win 7 laptop? Am I missing something?
    I only said backup the win 8 data in case you had anything you wanted to keep there.
    As you have already wiped the win 8 partition I'll take that as a no.
    So now you can just do an upgrade install over win 7 rather than a full install of win 8, which is the easiest path.

    What I would do is check the Lenovo web site to see if they have the win 8 drivers and utilities that you want available for download. If so download them onto a DVD or USB. Then do a clean install of win 8 loading the required drivers/utilities off the DVD/USB. This does have the risk of not all utilites/drivers being there so backup your win 7 before doing anything.
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  3. #52


    Posts : 22
    win8


    Will do. Thank you.
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  4. #53


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


    Quote Originally Posted by Gilgamesh View Post
    Quote Originally Posted by theog View Post
    warning   Warning
    You will need to have the Microsoft System Reserved Partition.

    Is there a way of doing this if you don't have the Microsoft System Reserved Partition?
    I used to have a triple boot of Vista, Win7, and Win 8 and I decided to retire Vista and deleted its partition while making Win 7 the boot partition. Big mistake as my system became unbootable and Win7 and Win8 repairs wouldn't work. So I had to do fresh installs of Win7 and Win8 .
    If are installed in Legacy mode, mark the partition (of Vista, Windows 7, Windows 8) ACTIVE & do a Start Up Repair.

    Partition - Mark as Active - Windows 7 Help Forums


    Startup Repair - Windows 7 Help Forums
    Note: You may need to do startup repair 3 to 4 times.
    Startup Repair - Run 3 Separate Times - Windows 7 Help Forums
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  5. #54


    Posts : 16
    Windows 10 Pro 64-bit


    Will these steps delete Windows 7 from the Windows Boot Manager's list?
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  6. #55


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


    Quote Originally Posted by chun96 View Post
    Will these steps delete Windows 7 from the Windows Boot Manager's list?
    If your partition layout is the same as in the tutorial, YES.
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  7. #56


    Theog, I have a slightly different set up as I had Windows 7 installed on Disk 4 Samsung SSD X: drive which also contains the System Reserve partition. You'll notice that I have Win 8.1.1 installed on Disk 1 Liteonit SSD With Partition C: and 38 GB of Unallocated space! No System Reserve.

    I intentionally set this dual boot up having the OS that is not in use to use the drive letter X:

    To complicate matters this is on a Asus P7P55D-E Pro board. I have installed and am using a 4 port SATA 3 PCIe 2.0 card with Marvell chipset.
    Current set up is port 0 Liteonit Windows 8.1.1
    Port 1 and 2 WD Blacks with Data and some programs
    Port 3 has my Samsung SSD and window 7 install with the System Reserve partition.

    On Boot up the Win 8 Blue boot screen comes up, with Win 8 as default, I can select either Win 8 or Win 7

    My Thoughts are to follow your Guide and mark my Disk 1 as Active
    Shut down and remove or disconnect Disk 4 with the Win 7 install and the system reserve partition
    Then run from my Window 8.1.1 pro USB install media run a start up Repair?
    Click image for larger version
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  8. #57


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


    @ Clintlgm

    Remove HD drive with drive Letter X: as X for the boot disk ram drive.
    Remove HD Drive with drive letter A: as A for floppy drives.

    1) Make Windows 8 HD Drive, disk 0.

    2) mark Disk 0 ACTIVE.
    Partition - Mark as Active - Windows 7 Help Forums

    3)From the Repair CD/USB:
    How to do a Auto Repair:
    Automatic Repair - Run in Windows 8
    Note: You may need to do startup repair 3 to 4 times.
    Startup Repair - Run 3 Separate Times - Windows 7 Help Forums

    Best to have only one HD Drive Physically connected.
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  9. #58


    Posts : 16
    Windows 10 Pro 64-bit


    Does this works for Windows 10 as well?
      My System SpecsSystem Spec

  10. #59


    Posts : 22,577
    64-bit Windows 10


    Quote Originally Posted by chun96 View Post
    Does this works for Windows 10 as well?
    Hello Tan,

    Yes, it's the same in Windows 10.
      My System SpecsSystem Spec

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Dual Boot Windows 7 and Windows 8 - Delete Windows 7
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