Hi and welcome to the discussion boards. 

This should provide a good starting point on how to perform restores:

Data Recovery - User Guide for VMware vSphere (veeam.com)

Hi @Manish, check out the Veeam Quick Start Guide: https://helpcenter.veeam.com/docs/backup/qsg_vsphere/restore_operations.html?ver=110

is it a VM backup or agent backup?

I have one PC wherein I have installed Veeam B&R. In it I have configured to take backup of my Server data to other server where I have attached external USB HDD.

Now I want that if I want to restore the backup from the external USB HDD how to do it.?

Hope I am clear ?

Manish

There is no Vsphere or VMWare nothing. It is bare metal server having Window Server OS, taken backup from there to external HDD.

This link should help:

https://helpcenter.veeam.com/docs/backup/qsg_vsphere/restoring_from_agent_backups.html?ver=110

This is probably the best link to follow as it sounds like you did an agent backup.