i have a Seagate external drive used as backup; assigned to Drive I:; when I would boot up, that drive was always correct; yesterday, I replaced my printer (USB connection); now, the Seagate shows is as Drive K: and when I go to Disk Management to Change, Drive I: does not show as an option; if I reboot and immediately go to Change Drive, I: will be there.

What's the problem; how can I assure that the Seagate is always identified as I: ??

Thank you, appreciated!