My laptop is having some issues

This one is a Toshiba Satellite Pro. I used it to play Minecraft 4 before. Yesterday, I reinstalled the Windows system because sometimes the game would freeze and I needed to restart the computer. So I installed Windows 10 Professional from a USB drive, but there was no Start menu. Instead, I installed it using setup.exe because I couldn't enable the Start menu in the BIOS. Maybe it's because the SSD has a password set. This computer was bought a few years ago. Maybe some organization set a password to control it! In the BIOS, 

I can't make any changes. I can only modify the date and time. After reinstalling the system, the system prompted me to enter my Microsoft account. I entered an old account, although I know the password, but it's probably been unused for over ten years. After restarting, a window popped up asking me to log in with my Microsoft account. I entered the password, but they asked me to verify the code with my mobile phone number. But I no longer have that mobile phone number, so I can't prove that this is my account! Now I can't log in and use this computer.

 I would like to ask if there's a way to reinstall the system directly from the USB drive without using the Start menu? I want to add another Microsoft account! thank you