If you want to open the Command Prompt window on your Login screen or the Boot screen in Windows, here are different ways to do it.

If you want to open an Elevated Command Prompt, which is one that runs with Administrator privileges, you can see the How to open a Windows 10 Elevated Command Prompt article instead.

If your Windows 11/10 computer won't boot or start up after a power outage you may have to carry out Startup Repair, or boot from the Installation media and repair it.

You can open the Command Prompt on a PC by right-clicking the Start icon, by searching for it, or by opening the Windows System folder.

Whatever the reason, Windows 11 includes multiple ways to boot a computer in Safe Mode using the Start menu, Settings, System Configuration, and Command Prompt.