My back up device backs up regularly but only new items since the previous back up.
If I get a new back up device will it back up from scratch or should I restore all content on the old device back to my pc?
Or put another way if I replace my existing device with a new one will it treat everything as not yet backed up?
Hmm
Thanks
I'm a bit confused by what you're calling a backup device. Do you just mean an external hard drive?
What you're describing is an incremental backup system --- you do it once at the start to backup everything, then each subsequent time only the new files are backed up. It makes it a lot faster than doing a full backup every time.
If you buy another external hard drive, you will do a full backup the first time again, and then continue incrementally.
if incremental backup is set there are a couple of sub options
mirror - add/remove files as they are created/deleted
copy new - copy new/changed files, but leave files deleted from main
so it depends on your package - there could be files on the device that are no longer on the main machine.