Installed a 1 TB drive to replace older 300 GB but first backed up to 2nd drive and made a repair disc (Mirror Image). Installed it on new 1 TB but in computer it stills shows old size.Win/7-64 is OS and all my files are fine. How can I change the size to reflect new drive size, there are no partitions as I have other backups. Would hate to overwrite a new drive. Used W7 backup and restore.