Macbook OS This item is temporarily unavailable
I was just given a Macbook Pro by my uncle it is his old one i do not know what model exactly. He wanted me to deuthorize the Mac from iTunes, he also wanted me to sign him out of iCloud and wipe the drive. I did all this and when I went to reinstall the OS with my apple id as he had given it to me, I always get This item is temporarily unavailable. I have looked online and tried a few solutions but none seem to work. I have also tried Command Option R and Command R. I have never owned a mac before is there any way to have it connect to my Apple ID. Thanks.
MacBook Pro