Backup all files.

Back up the database. 

Create database on new computer. (Use the same database name/user/password to make things simple)

Download and install same version of DNN on new server.

Browse to main directory.  A new DNN portal should be running.

Install all additional modules on new server.

Restore the DNN files on the new server (overwrite existing).

Edit config file with new database server address.

Browse to main directory.  Should be running.

Can u tell little more clear steps.

Where & how to backup and restore.

Because the machine on which I want to deploy is like server.

So I don't want to damage the server by doing wrong steps.

So can you tell steps in detail assuming I am new in this.

                                                                    Thanks

                                                                      Supriya