Windows 10: Convert Windows 10 from Legacy BIOS to UEFI without Data Loss  

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  1. Brink's Avatar
    Posts : 33,055
    64-bit Windows 10 Pro build 18252
    Thread Starter
       01 Dec 2017 #80

    I'm glad it could help Burgurne. :)
      My ComputersSystem Spec

  2.    03 Jan 2018 #81

    Brink said: View Post
    I'm glad it could help Burgurne. :)
    Hello, I was successfully able to convert to UEFI using this tutorial. I checked my partitions and noticed that a new partition (EFI System Partition) was added. Is it safe to delete this to get more memory or should I leave it as is?

    Click image for larger version. 

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  3. Brink's Avatar
    Posts : 33,055
    64-bit Windows 10 Pro build 18252
    Thread Starter
       03 Jan 2018 #82

    Hello dowon, :)

    The EFI partition is normal. You do not want to delete it since it is required to boot a UEFI Windows installation.

    I'm glad it went smoothly for you.
      My ComputersSystem Spec

  4.    03 Jan 2018 #83

    dowon said: View Post
    Hello, I was successfully able to convert to UEFI using this tutorial. I checked my partitions and noticed that a new partition (EFI System Partition) was added. Is it safe to delete this to get more memory or should I leave it as is?
    The EFI System Partition is now what the computer is booting from. Delete it and the computer will not boot.
      My ComputerSystem Spec

  5.    01 Feb 2018 #84

    Ok the conversion went well. Although it messed up System restore, there was a C drive (missing) in the available drives which had to be deleted.
    Also it has assigned a drive letter E to the System reserved partition when it did not have one before.
    Click image for larger version. 

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    Should the drive letter be removed?
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  6. Brink's Avatar
    Posts : 33,055
    64-bit Windows 10 Pro build 18252
    Thread Starter
       01 Feb 2018 #85

    Hello Kpat62, :)

    Yes, you can remove the drive letter for "E". It normally wouldn't have one.
      My ComputersSystem Spec

  7.    01 Feb 2018 #86

    Thank you Brink
    I set the label to none. All is well.
      My ComputerSystem Spec

  8. Brink's Avatar
    Posts : 33,055
    64-bit Windows 10 Pro build 18252
    Thread Starter
       01 Feb 2018 #87

      My ComputersSystem Spec

  9. ntd252's Avatar
    Posts : 20
    Windows 7/Windows 10 1709 Dual boot
       19 Apr 2018 #88

    I have a triple-boot system: Windows 7 + Windows 10 + Linux Mint.
    I have backed up everything, so can I use that method with accepting that things can go wrong?
      My ComputerSystem Spec

  10. Brink's Avatar
    Posts : 33,055
    64-bit Windows 10 Pro build 18252
    Thread Starter
       19 Apr 2018 #89

    Hello ntd252,

    I wouldn't recommend doing this when you have a multiboot system like that. It will most likely break it.
      My ComputersSystem Spec


 
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