my Brother bougth a mac mini in a yard sale about a 8 months ago and he gave it to me when i tried to reset to factory it ask me for a an apple id ho can i reset it to factory setting with out an applr id?

Carlos Nuñez wrote:

my Brother bougth a mac mini in a yard sale about a 8 months ago and he gave it to me when i tried to reset to factory it ask me for a an apple id ho can i reset it to factory setting with out an applr id?

The original owner must do this: What to do before you sell, give away, or trade in your Mac - Apple Support

Otherwise the computer is of no value to you and should be returned for a refund.