Restore site using "SharePoint 2010 Management Shell" Or "STSADM"

1.Open "SharePoint 2010 Management Shell".
Goto Start ->> Click All Programs ->> Microsoft SharePoint 2010 Products ->> SharePoint 2010 Management Shell



2.Write stsadm command.
stsadm -o restore -url http://server:port/ -filename "/your website backup.bak" -overwrite



3.Press Enter and wait for response.