Hi, I am Dave, I will help you with this.
That recovery key is a Bitlocker key for drive encryption, if the drive is encrypted you cannot reset Windows, the only way to remove that encryption is to clean install Windows from a bootable USB, and at the start of the installation, delete app partitions on the drive.
You will need an empty 8Gb USB flash drive.
Click this link:
https://www.microsoft.com/en-us/software-downlo...
to download the Media Creation Tool (Click on Download Tool Now), with that you can create a bootable USB flash drive (min 8GB) using that tool
Then, Boot your PC from the Installation Media you just created (change Boot Order in your BIOS) to begin installing Windows 11
During the installation process skip the steps which ask for a product key and select the option 'I am Reinstalling Windows 11 on this PC'.