I rarely ever, ever need to restore just a file, so I've never used the differential or incremental feature. I do, however, occasionally get in trouble testing software, so all of my restores have been full restores except once when I did want to replace a file. I would use Comodo's Time Machine on the old XP machine for restores if I wanted to remove software and have been using AX64 now on a W7 PC I built. But what If I wanted to use my Paragon? I image my SSD to another SSD using P Backup and Recovery 12 Home. An image takes around four minutes and recovery about five and one half to six minutes. However, if I merely wanted to back up prior to an installation, would I do a differential or an incremental? Would the backup and recovery be faster than my normal image restore? Thank you!