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

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  1.    28 Jun 2018 #51

    dejwiu said: View Post
    It didn't help. I don't get any options in the boot override menu. I enabled everything and usb support was full initial. The only thing is i can see the usb in usb configuration.
    Then you might have a defective Windows 10 USB flash drive.

    You could try mbr2gpt command on your current Windows installation.
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  2. Caledon Ken's Avatar
    Posts : 10,581
    Windows 10 Pro x64 Build 1803
       28 Jun 2018 #52

    NavyLCDR said: View Post
    Then you might have a defective Windows 10 USB flash drive.
    Agree, one of very early posts asked OP to recreate using MCT tool.
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  3.    28 Jun 2018 #53

    NavyLCDR said: View Post
    Then you might have a defective Windows 10 USB flash drive.

    You could try mbr2gpt command on your current Windows installation.
    it isn't defective since i installed win 10 with it but with csm enabled
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  4.    28 Jun 2018 #54

    how to try this command?
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  5.    28 Jun 2018 #55

    and the thing is bios sees my usb as mass storage device but can't see it in boot options and boot priorities
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  6. EyeInTheSky's Avatar
    Posts : 221
    Windows 10 Home x64 - Version 1809 (OS Build 17763.55)
       28 Jun 2018 #56

    dejwiu said: View Post
    how to try this command?
    My post #3 in this thread.
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  7. Bree's Avatar
    Posts : 8,809
    10 Home x64 (1809) (10 Pro on 2nd pc)
       28 Jun 2018 #57

    dejwiu said: View Post
    it isn't defective since i installed win 10 with it but with csm enabled
    That just proves it can boot in Legacy mode (CSM). To be capable of booting in UEFI mode as well it needs the files and folders higlighted in yellow in this screenshot. This is an install usb made by the MCT for installing either x64 or x86 Windows 10. At one time or another I have successfully booted it in Legacy and UEFI modes and used it to do both MBR and GPT installs.

    Does your usb stick have the efi files/folder I highlighted? If not, use the MCT to make a new one.

    Click image for larger version. 

Name:	USB made by the MCT - directory listing.PNG 
Views:	15 
Size:	15.4 KB 
ID:	193804
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  8. AddRAM's Avatar
    Posts : 2,105
    Windows 7 Pro x64 Windows 10 Pro x64
       28 Jun 2018 #58

    Not sure why you are having such a problem with this.

    If you want to install windows in UEFI mode, you have to set the Bios to strictly UEFI or Legacy & UEFI, if your Bios has that option. Mine does so that`s how I leave it, most new boards have this option.

    So once you have that setup in the Bios, you boot from the USB stick and choose the usb stick with the letters UEFI in front of it.

    And if you are doing a clean install, once you get to the hard drive screen, delete all the partitions on the install drive so there is nothing but unallocated space. (You should only have 1 drive plugged in when installing windows) Then the installer will set the drive up and make the necessary partitions.

    Here is a pic of my 16GB Lexar usb stick clearly showing both options.

    I do not install in UEFI mode, so I choose the 5th item in the list, it`s the same Lexar usb stick. But I choose to install in Legacy mode on a MBR drive with only 1 partition. That`s just how I like it.

    This is just an example picture, so that`s why my 2 4TB drives are on the list too. But I could have just disabled them in the Bios so they wouldn`t show up, but it`s best to just unplug the power cables.
    Attached Thumbnails Attached Thumbnails Boot Menu.JPG  
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  9.    28 Jun 2018 #59

    Bree said: View Post
    That just proves it can boot in Legacy mode (CSM). To be capable of booting in UEFI mode as well it needs the files and folders higlighted in yellow in this screenshot. This is an install usb made by the MCT for installing either x64 or x86 Windows 10. At one time or another I have successfully booted it in Legacy and UEFI modes and used it to do both MBR and GPT installs.

    Does your usb stick have the efi files/folder I highlighted? If not, use the MCT to make a new one.

    Click image for larger version. 

Name:	USB made by the MCT - directory listing.PNG 
Views:	15 
Size:	15.4 KB 
ID:	193804
    yes it does
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  10. EyeInTheSky's Avatar
    Posts : 221
    Windows 10 Home x64 - Version 1809 (OS Build 17763.55)
       28 Jun 2018 #60

    I also want to add that if you want to convert the disk using mbr2gpt command, be sure to convert the whole disk and not just a partition.


    For example, Disk 0 is different than just HP (C:) as Disk 0 represents the whole drive where Windows is installed.


    Click image for larger version. 

Name:	Disk 0.jpg 
Views:	1 
Size:	110.2 KB 
ID:	193806
      My ComputerSystem Spec


 
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