This time, we faced same symptom as third time, i.e. after power on, no HDD access for 5 minutes.
October 15th, HDD replace
May 16th, Reset battery button
May 30th, Reset battery button
Last time, Acer engineer recommended to reset battery button if same symptom appeared.
But, it was just two weeks before.
And there are many information how to reset electrified computer in the internet,
Means, it is not the matter because of Windows or other OS.
So I would like to know about the mechanism of computer electrified and preventive actions from Acer engineer.
To tell the truth, his notebook contains a lot of data and cannot hand-out for a long time except if repair work is surely defined.