Old version has backup & restore feature.
Why new version haven't?
I can't install the update. It says it's not signed???
Crystal Delivery was completely re-written after version 8.x.x. Backup / Restore is on the list of features to be re-added to Crystal Delivery 12.
You can manually backup your settings by copying the crystaldb.sdf file and saving it. This file is located as follows:
Crystal Delivery Pro:
C:\ProgramData\Crystal Delivery Pro\crystaldb.sdf
Crystal Delivery Free/Standard:
C:\Users\<Your User>\AppData\Roaming\Crystal Delivery\crystaldb.sdf
You can save that file off in a save place and simple paste it back when you want to "restore".