"When I tried to transfer my Lightroom 5 from my old laptop hard drive it wouldn't go because the MacBook won't accept it."
What operating system is being used on the reconditioned MacBook? Please give us the version NUMBER and not words like "recent" or "up-to-date".
How did you do the transfer, step-by-step? What does "won't accept it" mean? Exactly what happens? Explain in detail. If there is an error message, please quote the exact complete unedited word-for-word error message.