Doesn't seem to be working. I've held d and it eventually just goes back to login
Got it to go. But says apple hardware doesn't support this...
I don't have the USB anymore. Heck I lost it. So how can I run the AHT.That would only make sense if you were trying to boot to a system restore DVD (and that DVD was not the disk that came with that Mac)
An Apple restore DVD, and its included diagnostic test, won't run on a Mac different from the system that it shipped with.
And, it's an older Mac, prior to (2010?), which won't boot to the internet test.
Check my signature. OS X Mavericks, as well.Which model MacBook Air do you have?
Year, screen size, and processor would be great - or you can check in the System Profiler, or System Information on a newer Mac.
Get to that quickly from the Apple menu/About this Mac.
Click on the More Info button.
And, post the Model Identifier.
It will be something like MacBookAir3,1
Also, which OS X version are you running now?
That is incorrect.hmmm I also can't even run system diagnostic on my macbook air 2013 13". Bought with mountain lion preinstalled, now using latest mavericks