Windows 8 and 8.1 Forums


Cant Install Win 7(64bit) on my Windows 8 64 bit laptop

  1. #1


    Posts : 2
    Windows 8 64bit

    Cant Install Win 7(64bit) on my Windows 8 64 bit laptop


    Hello i have Lenovo P580
    Windows 8 64 bit
    i7- 3520M @ 2.90Ghz
    Nvida 630GtM 2gb.

    So now i want to install win7(64bit) and keep it as dual boot, i did everything right while making UEFI usb and now when i boot from Usb, the windows setup gets stuck at the logo 'Starting Windows', tried keeping there for 10-15mins.

    PLEASE HELP

      My System SpecsSystem Spec

  2. #2


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


    Welcome to EightForums.

    Take note of Step Three:
    1) Downgrade to Windows 7.
    Downgrade Windows 8 to Windows 7

    2) Using a USB Pendrive on a PC with a uEFI BIOS.
    USB Pendrive need to be formated to FAT32 as in
    UEFI Bootable USB Flash Drive - Create in Windows
    Take note of Step 11 for Windows 7.
      My System SpecsSystem Spec

  3. #3


    Posts : 2
    Windows 8 64bit


    Quote Originally Posted by theog View Post
    Welcome to EightForums.

    Take note of Step Three:
    1) Downgrade to Windows 7.
    Downgrade Windows 8 to Windows 7

    2) Using a USB Pendrive on a PC with a uEFI BIOS.
    USB Pendrive need to be formated to FAT32 as in
    UEFI Bootable USB Flash Drive - Create in Windows
    Take note of Step 11 for Windows 7.




    I have done everything perfectly, secure boot is OFF and that file is renamed and moved too, still stuck at the loading screen while installing win7.
      My System SpecsSystem Spec

  4. #4


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


    You need to do all of step 3 first.


    Quote Originally Posted by theog
    3) Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
    Make sure CSM is ENABLED, & set to UEFI boot.
    NOTE: Check your manufacturer's uEFI BIOS manual for settings.


    Take a look at this post.
    UEFI Bootable USB Flash Drive - Create in Windows
      My System SpecsSystem Spec

  5. #5


    Posts : 1,121
    Windows 8.1 x64


    When I load Windows 7 with a Windows 8 install, I have to change the Secure Boot option from Windows UEFI (really Windows 8 UEFI) to Other OS. With the CSM enabled, I can then install Windows 7, but each OEM handles the options differently.

    You might check your bios and see what options you have for Secure Boot and CSM, or some option that might look similar, as theog suggests.
      My System SpecsSystem Spec

Cant Install Win 7(64bit) on my Windows 8 64 bit laptop
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