{Request} Removing bios text line in splash screen

I bought mulitple HP Notebooks from an auction.

These Notebooks were used in a company.

When i startup the Notebook the splash screen shows the following text line above the logo: Koninklijke BAM Group Nv

Is it possible to be modded or removed?

In the attachment u can find my bios file.

Updating bios and recovering bios with new bios file from manufacturer did not work.
Model of my Notebook : HP ZBook 15 G2

Link to bios file, i can't upload to this thread sadly: http://www.megafileupload.com/9q55/Hewle....01.11.rom

Thanks in advance!