Windows 10: Open Command Prompt at Boot in Windows 10  

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  1.    13 Feb 2018 #20

    You probably should note in this guide that this "Command prompt" can't be used to update BIOS. For that you'll need rufus or equivalent and create a bootable USB with FreeDOS (default setting in refus).
    I assumed as you had to reboot to get to the cmd that it was a "DOS prompt".

    You need to enable "legacy mode" in BIOS (UEIF is probably default), or you can't boot the USB.

    After update of BIOS I re-enabled UEIF but I also had to re-enable something called "Windows boot manager" in BIOS. Though I never remember having to do that to get Win10 to boot properly before.
      My ComputerSystem Spec


  2. Posts : 10,972
    Windows 10 Pro and Windows 10 Pro Insider
       13 Feb 2018 #21

    ptutrup said: View Post
    You probably should note in this guide that this "Command prompt" can't be used to update BIOS. For that you'll need rufus or equivalent and create a bootable USB with FreeDOS (default setting in refus).

    You need to enable "legacy mode" in BIOS (UEIF is probably default), or you can't boot the USB.

    After update of BIOS I re-enabled UEIF but I also had to re-enable something called "Windows boot manager" in BIOS. Though I never remember having to do that to get Win10 to boot properly before.
    This tutorial is how to open a command prompt a boot. Nowhere does it claim to be able update BIOS. It is simply how to access a command prompt in the WinRE environment.
      My ComputersSystem Spec

  3.    14 May 2018 #22

    Im trying to get to Command Prompt via Advanced Startup Options in Windows 10, but when I get to the screen for choosing your account, I lose the cursor and all mouse/keyboard control so cannot go any further.

    I can use a Windows Installation USB to reach Command Prompt but deleting the windows.old folder this way isnt working, maybe because Im not recognized as administrator?
      My ComputerSystem Spec


  4. Posts : 31,237
    64-bit Windows 10 Pro build 18214
    Thread Starter
       14 May 2018 #23

    pliskken said: View Post
    Im trying to get to Command Prompt via Advanced Startup Options in Windows 10, but when I get to the screen for choosing your account, I lose the cursor and all mouse/keyboard control so cannot go any further.

    I can use a Windows Installation USB to reach Command Prompt but deleting the windows.old folder this way isnt working, maybe because Im not recognized as administrator?

    Hello pliskken, :)

    If you like, using Option 4 or 5 below instead are good ways to empty the Windows.old folder for the previous version of Windows.

    Delete Windows.old Folder in Windows 10 | Windows 10 Tutorials
      My ComputersSystem Spec

  5.    14 May 2018 #24

    I orginally used Option 1 (so Options 4 and 5 are no longer available) and it did remove 99.9% but the windows.old folder itself still remains on C: which is bugging me Thanks anyway
      My ComputerSystem Spec


 
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