Prevent new customers from being selected as non-Prospect

Hi All,

Is it possible to prevent end users from creating nothing more than a Prospect when creating a new Account, say in the QC screen?

By default the Prospect checkbox is marked and I want to ensure that does not get unselected.

We would prefer all new accounts to be created as a Prospect and then the conversion to a Customer is a more rigorous, defined process.

Thanks, in advance.