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Windows 7 PRO - Installation on a new laptop without a system - fatal error

pigaw 6702 8
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  • Windows 7 install fails with c000021a on new Lenovo

    #1 16924887
    pigaw
    Level 9  
    Posts: 12
    Hello,
    I just picked up a new Lenovo laptop without a pre-installed system. I thought that there would be no problem with it, because I installed windows with flash drives more than once. While loading installation files, the process is interrupted and a fatal error c000021a pops up. I read many threads of people who had this problem, but none of them helped me. I played a little with the BIOS settings, but to no avail, the same thing every time. I am asking for quick help, because nothing annoys like a new useless laptop on the table. It probably doesn't matter, but the disk is SSD. Installation is fine because the second laptop fires easily. Thanks in advance


    Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error
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  • #2 16924912
    Tom2666
    Level 12  
    Posts: 89
    Help: 7
    Rate: 11
    Format the disk with Gparted LiveCd and then install the system
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  • #3 16924915
    Pedros050
    Level 43  
    Posts: 17914
    Help: 2471
    Rate: 3926
    Hello. Maybe the boot mode is set incorrectly?
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  • #4 16924924
    pigaw
    Level 9  
    Posts: 12
    That's how I set up booting from a pendrive. While loading installation I get this error. And soon I will see this program and let you know.
  • #5 16924941
    sylweksylwina
    Moderator of Computers service
    Posts: 13215
    Help: 1882
    Rate: 2355
    Read about installing windows 7 on UEFI and it will light up a bit. Unless you want to install in legacy mode. I will forget that you didn't even specify what kind of laptop it is, so you can't tell if it is compatible with Windows 7 at all!

    What is the formatting of the disk supposed to ???
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  • #6 16924996
    Kolobos
    IT specialist
    Posts: 85178
    Help: 17171
    Rate: 10455
    @piterrr_ after all, the author wrote that the installer loads files, so after asking about booting?

    @sylweksylwina formatting nothing, but deleting a partition is required and creating new ones, especially since Freedos is now there.

    But it's still worth starting with the laptop model.
  • #8 16925174
    Dra98
    Moderator of Computers service
    Posts: 9194
    Help: 1321
    Rate: 1076
    With the new Intel Windows 7 platform does not go hand in hand.
    W7 cannot be installed via USB, because Intel instead of EHCI introduced xHCI, which causes a problem / the inability to install Windows 7 from portable memory using this interface, because there is no code to support it.
  • UEFI install works after formatting disk and using Windows 10

    #9 16925444
    pigaw
    Level 9  
    Posts: 12
    And there is a problem. The pendrive is well booted, because on an old laptop the installation starts. With Legacy support / UEFI First mode, the blue screen crashes as before. However, with UEFI what you see in the picture. OS Optimized Defaults to be enabled?

    Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error Windows 7 PRO - Installation on a new laptop without a system - fatal error

    If I have to do it from a CD, I can drive to the store and buy a blank CD until midnight, because I don't have it ...: /

    EDIT:
    So yes ... I have completely formatted the disk and installed Windows 10 with usb in UEFI mode. Thank you all for your commitment and help.

Topic summary

LABEL_AI_GENERATED
A user encountered a fatal error (c000021a) while attempting to install Windows 7 Pro on a new Lenovo Ideapad 320-15IKB laptop without a pre-installed operating system. Despite previous successful installations on other laptops using flash drives, the installation process was interrupted. Suggestions included formatting the SSD using GParted LiveCD, checking boot mode settings (UEFI vs. Legacy), and ensuring compatibility with Windows 7, particularly due to Intel's xHCI interface issues. The user ultimately resolved the problem by formatting the disk and successfully installing Windows 10 in UEFI mode.
AI summary based on the discussion. May contain errors.
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