+Oscar-
I am sorry to hear that; That message is very frustrating.
Two things:
1) I have noticed that sometimes a simple press of the key labeled ENTER can sometimes get the procedure to continue. (I cannot guarantee that, but it is easy to try.)
2) If you press the key called TAB when you receive that message you will display some diagnostics in the upper left hand corner of the screen. Those diagnostics messages will help to determine what is going wrong. (Unfortunately, again i cannot promise that those diagnostic messages will get you closer to joy, but it is part of the resolution.) Unfortunately, you cannot do a screen print at that point because the Operating System is not yet installed and running so it is necessary to write the message down by hand instead of doing a screen shot.
Best of luck !
-JW
On Tuesday, August 18, 2015 at 1:25:11 PM UTC-5, Oscar Gómez Leal wrote:Hi, i have exactly the same problem.. when i try to do a recovery it starts fine but then this message appear "an unexpected error has occured" .. the model of my chromebook is HP 14-q010nr , thank you!