Looking to install windows 10, coming from linux mint 19.1 cinnamon. I've downloaded media creator..

[CallmeNoob]

I received a hp Compaq elite 8300 all in one computer from my work via donation, it came with linux mint 19.1 cinnamon. I'm trying to reinstall windows via USB. I've been following a tutorial and have downloaded the media creator on another windows device and it's on the usb. But when trying to boot I do not find my usb in my boot menu (already made bootable) when trying to enter bios which I have no clue what it even is or how to navigate I am told to enter startup password after three failed attempts it lets me navigate a small menu to change a few things but the boot order option is a lighter font and I am unable to scroll down to it. So Im kind of stuck on what I should do next or if I'm even doing it right

[TheOldMan]

The HP Compaq Elite 8300 all in one is part of a business class line.  Depending on how the PC password is set, you might need some help from the IT dept of your company.

You should be able to enter the BIOS, if not password protected, by doing the following:

Start tapping the Esc key and then press the start button.
Keep tapping the Esc key until a popup menu shows.  Then pick the BIOS Setup F10

https://support.hp.com/us-en/document/bph07110

You should then be able to set the boot order, to boot from the USB.  If you cannot get that far because of the password, ask the IT dept to allow access, and have them remove the password requirement.

Here is a note in the manual about the security password

CAUTION:If you enable the stringent security feature in Computer Setup and you forget the setup password or the power-on password, the computer is inaccessible and can no longer be used.