Sounds very clean. However, I had disk capacity issues and I needed to use that storage. Anyway, if I would need that HDD, I would be able to connect it. I just wanted to have knowledge about why such an incident happened. For I would love to be prepared for possible future issues about disk drives and EFI partition/folder priorities...
If someone has sth to suggest about this, it would be much appreciated. Nevertheless, I am grateful for the simple solution you offered
@Feartech . I have been getting mad at home for three days hoping to solve this problem. Thank you again. Best wishes!