Hello, I have an old Macbook Air (app. 2015) that I want to reset it for sale (I have a new one). I tried to do it but something went wrong and I can't:
Fortunately I still can connect to the Internet. Can anybody help me?
[Re-Titled by Moderator]
Original Title: Factory reset
MacBook Air 13″, macOS 26.3
Where does your process fail and do you get any error message(s)?
Which macOS version are you trying to reinstall?
This is Apple's guidance for resetting your Mac.
Look for the steps for Intel-based Mac, not Apple Silicon.
What to do before you sell, give away, trade in, or recycle your Mac - Apple Support
I'm trying to install OS X, not sure of the version anymore. It starts to install and lasts for some minutes and then it tells to contact manufacturer.
But thanks for that link, there are few things that I must try next.
You're welcome.
FYI, OS versions properly named Mac OS X were first released in 2000 and there are at least thirteen version, depending on how you count them. If you count the versions later called macOS, then there are an additional ten. So you understand why the version is relevant when seeking guidance. Just sayin'.
Your MBA 2015 can run versions of the OS from Mac OS X 10.10 Yosemite thru macOS 12 Monterey. If you have trouble installing earlier versions, you may have success installing a later version. This might require that you create a bootable USB installer using another computer, particularly if the Mac you are having trouble with has no currently working OS.
Cheers! And luck! 🍀
Thank you for your messages and tips. I try to get this machine up and running somehow 😁
How to factory reset an old MacBook Air (2015) with Internet access?
