Recovering an abandoned laptop, need Bitlocker help

I've inherited a Latitude 7430 with W10 that has Bitlocker installed. I have no documentation at all, so no recovery passwords.

I want to format and re-install Windows with no Bitlocker. I've gone to BIOS and made the USB with the install the first boot option, and that works. But when following the prompts to install, when I am asked what drive to format the option area is empty. It suggests loading drivers.

I have gone to Command Prompt and am able to see the C: drive and it's four partitions there.

I can see the Bitlocker ID in Command Prompt but the password does not display.

I'm at a loss how to get Windows to install. Help? Please?

 

Might be easiest just to format it using disk manager on another machine and create the partitions you want. Worth getting a SATA Drive to USB Adapter cable (useful for backups too), But it should be possible to format it using the command line. Diskpart commands are likely to be available from your installation USB. Then you can just do a clean install. Never bothered about old recovery stuff myself, never seems worth trying to save.
Pete