How to Delete Domain!

Hi Networking gurus,

There are total 10 PCs in my office running windows 2000 server and got 2 domains on the 6PCs.I am confused how to delete the 2 domains in the office PCs.

Can anyone suggest the easiest way to delete those 2 domains, and just let all 30 PCs joining in the same workgroup.

Any help would be appreciated!
Thanks.

As per my understanding,If two domains are listed, it means that his computer is part of one of the domains and it has trusts with the other.
well,try to change from domain to workgroup, and it should work fine.

I haven't changed a computer form domain to workgroup in quite a while, changing the domain to workgroup may create any problem to the network?