Windows 10: Can't boot into UEFI mode - Lenovo Z50-70 Solved

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  1.    12 Dec 2016 #1

    Can't boot into UEFI mode - Lenovo Z50-70


    So I set the boot mode due to whateve reason to Legacy Mode (due to dual boot with Linux I think).

    Now I tried to set it back to UEFI. But this is what I got:

    (HDD is working if I swtich to Legacy Mode)
    Attached Thumbnails Attached Thumbnails 15409954_1369129306453581_1564143535_o.jpg  
      My ComputerSystem Spec

  2.    12 Dec 2016 #2

    To switch from legacy mode to UEFI you have to convert the HDD to GPT partitioning and replace the System Reserved boot partition (active) with an EFI system partition.
      My ComputerSystem Spec

  3.    12 Dec 2016 #3

    NavyLCDR said: View Post
    To switch from legacy mode to UEFI you have to convert the HDD to GPT partitioning and replace the System Reserved boot partition (active) with an EFI system partition.
    I guess this means a full reinstall.
      My ComputerSystem Spec


  4. Posts : 2,477
    Windows 10.3 Home 1703 x64 (Home per choice)
       12 Dec 2016 #4

    I have never managed to get UEFI working on this laptop. Any particular reason you want to?
      My ComputerSystem Spec

  5.    12 Dec 2016 #5

    TairikuOkami said: View Post
    I have never managed to get UEFI working on this laptop. Any particular reason you want to?
    Just wanted to see if there is any difference between UEFI and Legacy
      My ComputerSystem Spec

  6.   My ComputerSystem Spec

  7.    12 Dec 2016 #7

    Thanks!

    I get it that you don't recommend UEFI.
      My ComputerSystem Spec


  8. Posts : 2,477
    Windows 10.3 Home 1703 x64 (Home per choice)
       12 Dec 2016 #8

    Unless you have disk over 2TB, you do not really need it.
      My ComputerSystem Spec

  9.    12 Dec 2016 #9

    TairikuOkami said: View Post
    Unless you have disk over 2TB, you do not really need one.
    500GB SSD Here
      My ComputerSystem Spec

  10.    12 Dec 2016 #10

    doriandiaconu said: View Post
    I guess this means a full reinstall.
    Pretty much. You can create an image of your Windows partition with a program like Macrium Reflect Free. Set the computer to UEFI mode. Boot from a UEFI compatible USB flash drive or DVD of Windows 10. Use diskpart to clean the hard drive and convert to GPT. Clean install Windows 10. Restore your old Windows 10 partition from the image over the top of the new Windows 10 partition created. Run Macrium Reflect Free's fix Windows startup problems utility, and that should be it.
      My ComputerSystem Spec


 
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