Ok unfortunately I decided to format an external 3 TB hard drive but it is taking forever and it is being sold along with my Xbox One S. Can I stop this format without damaging the external 3 TB hard drive?
I don’t think it would cause any actual damage to the HD, but they’ll probably have to complete a format themselves before it’s usable.
Yes, but keep in mind that simply formatting does not fully erase the possibly to recover data. If you have anything sensitive on that drive at all then you should use killdisk.
Furthermore, if you sell a drive that doesn’t “work out of the box” then the buyer may feel taken advantage of, even if all they had to do was reformat.
Good news in all this guys is after the sale no emails back about there being any problems. : )