"...The other option is an external HDD. I've already bought two of those so it seems odd to have to buy one just for a Systems Image back up..." Saruman
For some time now, I have two dedicated 1TB usb external platter-driven hard-drives for each of my three computers, I on the average have two Cs and two Ds on each of the two dedicated HDs per computer.
Awhile back, I had backup HD A for computer A, backup HD B for computer B; well, computer B's HD developed a logical failure which was fixed by a format, however, that format also eliminated the backups for said computer B. From then on, it was either each HD would carry at least one C and one D from all the computers, or, better yet -- I decided on the two dedicated HDs per computer.
Edited by RolandJS, 27 July 2017 - 03:29 PM.