How to remove Default Testing Distribution Center from Liveupdate Administrator

Hi all,

In order to gain more free space, we want to remove Default Testing Distribution Center from the LUA server (it is not in use). We are following this tutorial https://support.symantec.com/en_US/article.TECH202..., but at the end we are getting message "Error while deleting configuration.". Is it possible to delete default DC at all and if it is, what is the correct procedure?

Thanks in advance!

Dejan