Can anyone help with "connect Ethernet cable" bricked teck?

Hi,

My Toshiba L-755 laptop (loved her from 1st day) is DEAD! :)

Lent to me bro for help on mcafee-the paid service virus thing from target back in 2013 - A security scam!! Fast forward he returns her with windows 10 (not Win 7 which I had on it) claims that its better.

• Present BIOS password needed.
• When accepts that, black screen wanting Ethernet cable connection
• Tried use BIOS to change load order to install Windows back on again.
• That failed!

This program called "rocket docket" kept showing up

If i switched my passwords. (who doesn't)

They would not work. Results were me stuck at log in screen forever.

My laptop is bricked by my ignorance. This i understand

Genuine help in saving her please, such a quality machine! Really want fix.

Or repurpose. Tossing away would be disrespectful. no trolls, we're adults here.