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#21
Sure that is OK. I use the same external for all my computers. I do put the different images in folders for each system so I won't get confused when and if I need to restore each computer. I use the Computer Names as the folder names and name the backup images with a date.
Like the PC I am on right now is named i5 (As it has an i5 CPU in it) so the folder on the external is named i5 Images. When I create an image from the i5 PC I name it i5 MM-DD-YY (I use the - as the divider as you can't us the / in a file name) and it goes in the i5 Images folder. I always create Full images of my systems never incremental images. With incremental images you need ALL of them, from the first full image and all of the incremental images, to do a proper restore.