I have a backup file from before i reinstalled windows but am unable to open it because the file is a NBF. It was created with Acer Backup Manager which is a proprietary version of NTI's backup software. is there any way to open this? I have tried using NTI Backup Now! 4.x but it says the file is invalid. Acer Backup Manager will only let me restore the ENTIRE image (not what I want), and many hours of googling have left me empty handed.