Windows 10: How do i install windows 10 without csm Solved

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  1. Caledon Ken's Avatar
    Posts : 10,584
    Windows 10 Pro x64 Build 1803
       28 Jun 2018 #91

    Can you buy an 8GB key. (or borrow from friend)

    Looks like it is getting late in your time zone.
      My ComputerSystem Spec

  2.    28 Jun 2018 #92

    guys i have one question, is it possible to convert mbr to gpt with csm enabled?
      My ComputerSystem Spec

  3. EyeInTheSky's Avatar
    Posts : 222
    Windows 10 Home x64 - Version 1809 (OS Build 17763.55)
       28 Jun 2018 #93

    dejwiu said: View Post
    but the problem is guys that i can install windows only with csm so i can't convert to gpt because i tried a while ago
    This is your post #6. According to it, you tried to convert to GPT, but you were unclear as to what procedure you tried.
      My ComputerSystem Spec

  4.    28 Jun 2018 #94

    Guys i've read that if i have uefi bootable usb (Microsoft one) i can only boot it on uefi bios. Since i have legacy now i cannot boot it. Can this be true?
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  5. Clintlgm's Avatar
    Posts : 827
    Win 10 pro Upgraded from 8.1
       28 Jun 2018 #95

    dejwiu said: View Post
    Guys i've read that if i have uefi bootable usb (Microsoft one) i can only boot it on uefi bios. Since i have legacy now i cannot boot it. Can this be true?
    If you'll create an Install USB Media using the Media Creation Tool your computer will boot either legacy or UEFI depending on what you select from the override boot menu.
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  6.    28 Jun 2018 #96

    Clintlgm said: View Post
    If you'll create an Install USB Media using the Media Creation Tool your computer will boot either legacy or UEFI depending on what you select from the override boot menu.
    so it will boot even with csm disabled?
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  7. Caledon Ken's Avatar
    Posts : 10,584
    Windows 10 Pro x64 Build 1803
       28 Jun 2018 #97

    I'm going to try to answer this way.

    If you use the MCT tool to create a bootable USB thumbdrive it will boot legacy or UEFI.

    You said you loaded defaults in BIOS so CSM is enabled and the opther options default to UEFI

    Again your disk needs to be GPT. If you have no data on disk that you need you boot from USB. On first screen you hold shift and press F10.

    at the command prompt

    diskpart
    List disk
    Select disk X (where x is the drive number you want to install windows on)
    clean
    Convert GPT
    exit
    exit

    Continue with your install. This WIPES EVERYTHING from disk. Have your data off machine.

    Once installed post disk management screen shot.
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  8.    28 Jun 2018 #98

    Click image for larger version. 

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  9.    28 Jun 2018 #99

    Caledon Ken said: View Post
    I'm going to try to answer this way.

    If you use the MCT tool to create a bootable USB thumbdrive it will boot legacy or UEFI.

    You said you loaded defaults in BIOS so CSM is enabled and the opther options default to UEFI

    Again your disk needs to be GPT. If you have no data on disk that you need you boot from USB. On first screen you hold shift and press F10.

    at the command prompt

    diskpart
    List disk
    Select disk X (where x is the drive number you want to install windows on)
    clean
    Convert GPT
    exit
    exit

    Continue with your install. This WIPES EVERYTHING from disk. Have your data off machine.

    Once installed post disk management screen shot.
    it didn't work i guess
      My ComputerSystem Spec

  10. Bree's Avatar
    Posts : 8,809
    10 Home x64 (1809) (10 Pro on 2nd pc)
       28 Jun 2018 #100

    Caledon Ken said: View Post
    If you use the MCT tool to create a bootable USB thumbdrive it will boot legacy or UEFI...
    I've not had my hands on an official Microsoft manufactured usb, but I'd be very surprised if it didn't have the same uefi and legacy boot files as one made by the MCT. In fact, the OP has confirmed that it has the efi files in post #59 (and we already know it boots in legacy).

    No, the usb isn't the problem, the bios or motherboard is the root of the trouble.
      My ComputersSystem Spec


 
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