Open Command Prompt at Boot in Windows 10  

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.

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

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 )

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.

Brink,

Option 1 does not culminate in opening a Command prompt.

Denis

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.

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