Open Command Prompt at Boot in Windows 10  

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  1. Posts : 3
    Win10 Pro
       #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.
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  2. essenbe's Avatar
    Posts : 12,510
    Windows 10 Pro 1903
       #21

    ptutrup said:
    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.
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  3. Posts : 44
    Windows 10 x64
       #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?
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  4. Brink's Avatar
    Posts : 56,333
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #23

    pliskken said:
    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
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  5. Posts : 44
    Windows 10 x64
       #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
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  6. dalchina's Avatar
    Posts : 29,990
    Win 10 Pro (1903)
       #25

    Hi, MS has added PIN when booting to Safe Mode from e.g. build 2004; does that also apply here?

    I'd guess not, which means people still have to remember passwords.

    If so might be worth a cautionary note in the tutorial about setting up a PIN - there have been several threads 'I use a PIN- I can't remember my password' (ok, see tutorial on resetting pwd )
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  7. Brink's Avatar
    Posts : 56,333
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #26

    dalchina said:
    Hi, MS has added PIN when booting to Safe Mode from e.g. build 2004; does that also apply here?

    I'd guess not, which means people still have to remember passwords.

    If so might be worth a cautionary note in the tutorial about setting up a PIN - there have been several threads 'I use a PIN- I can't remember my password' (ok, see tutorial on resetting pwd )
    Just tested in a clean installed v2004 VM that uses a PIN, and still no PIN support for this. Password only.

    Luckily, you can still use option 1 without needing to know a password.
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  8. Try3's Avatar
    Posts : 7,447
    Windows 10 Home x64 Version 20H2 Build 19042.928
       #27

    Brink,

    Option 1 does not culminate in opening a Command prompt.

    Denis
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  9. Brink's Avatar
    Posts : 56,333
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #28

    Try3 said:
    Brink,

    Option 1 does not culminate in opening a Command prompt.

    Denis
    Hello Denis,

    You should be able to pick up at step 2 in option 2 after doing option 1 to open the command prompt at boot.
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  10. Try3's Avatar
    Posts : 7,447
    Windows 10 Home x64 Version 20H2 Build 19042.928
       #29

    Brink said:
    You should be able to pick up at step 2 in option 2 after doing option 1 to open the command prompt at boot.
    Yes, that's what I suggested to another member just before my post to you. I can see that you've added that instruction now.

    There are typos in the revised line. I suggest changing
    A) Click/tap on Repair your computer, and go to step 2 in OPTION TWO below. (see screenshot below
    to
    A) Click/tap on Repair your computer (see screenshot below), and go to step 2 in OPTION TWO below.

    All the best,
    Denis
      My Computer


 
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