Computers that support this can take you to the bios directly from the Windows command prompt. But sometimes it does not work and sometimes you may need to access the bios / uefi settings even if Windows cannot start.
Your computer’s bios (Basic Input / Output System), on newer computers often called uefi (Unified Extensible Firmware Interface), is the firmware that determines in the background, regardless of operating system, and for example controls what should happen at startup, keeps track of which storage devices and components you have and handles a number of other important functions. If you want to change your boot order, set a system password, disable ports or built-in equipment, you may need to enter the bios menus.
There are several different methods to get there, the most common of which is to press a special key during computer startup. However, some computers start up so fast that there is no time to press a key, and some desktops do not even sense input from a USB keyboard until after the startup is complete. Here are some alternative methods.
Note that not everyone may work on your computer, it depends on whether it uses classic bios or modern uefi.
As I said, the most common is to press or hold a key when starting the computer. Most often it is F2 or Partbut also Esc, F10 and F12 occurs. If you are fast, you can read which key it should be at the bottom of the screen during start-up. Otherwise search online.
This method is the mouse variant of what you can do in the Command Prompt. click Start, Settings and Update and security. Select Recovery and then Restart now. After reboot, select Troubleshooting, Advanced options, UEFI settings and Restart.
3. USB stick
The emergency way if the operating system does not start and the key method does not work is to use a USB boot. This assumes that the bios is already set to boot from usb or that you can select it. Fix a USB stick www.microsoft.com and start from it.
click Repair your computer. Then continue from Troubleshooting in step 2. In extreme emergencies, it may also be possible to force yourself into the bios by causing an error, such as disconnecting the hard drive or keyboard, or overloading the keyboard buffer with lots of presses.