Acer Aspire 7750Z-4457 Boot Problem

[johnr58]

Upon powering up, Acer logo appears and then the message
Harddisk Security
SATA Port 0 WDC5000PVBT-22HXZLock appears..When I press enter, it asks for a password. I didn't change any settings. Please help. Was working fine the day before. <email address removed by moderator> Thank you!!

 

[popatim]

Sorry but we don't help bypass security features. Please contact Acer for further assistance.