I’ve bought a second 4TB My Passport. I want to keep two copies of all my backup and switch from time to time. I removed the original one and plugged in a new 4TB Passport. But I can’t see how to see it and start it. Help!!
Also, should I copy everything? The first copy only copied some things. However, my internal hard disk, divided into C and D drives only total about 2.1TB. So I could backup everything. Should I?
What frequency is a good idea for backup?
Finally, should I leave both Passports plugged in to both back up simultaneously or will that slow the machine down?