iMac hard drive testing software? (free)

[TridenT]

Anyone got some software they can recommend that is free to test the hard drive inside an iMac? It's a relatively new iMac (has thunderbolt). It has a ? over a folder when booting up. Just need to test the hard drive to see if it has any bad sectors and so forth. (Disk utility isn't sufficient from what I can tell) We already got some files off of it.

 

[TheStu]

Is it booting at all?

If it is relatively new, then why not take it to the apple store?

 

[TridenT]

Is it booting at all?

If it is relatively new, then why not take it to the apple store?

Yeah, that's what we're doing now. I just assume everything isn't under warranty. Its technical service is expired, but replacement is still good to go. Just going to have the user take it to the Apple store.

 

[TheStu]

Apple will diagnose for free and then advise the cost for repair if it isn't in warranty.