Asus A75VD Manual page 86

5. If problem still cannot be solved, use the recovery process to
reinstall your entire system.
IMPORTANT! You must backup all your data to another location
before recovering.
CAUTION! DO NOT connect to the Internet before you have
installed an anti-virus software and Internet firewall to protect
yourself from viruses.
Ensure that you install the "Intel INF Update" and "ATKACPI"
drivers first so that hardware devices can be recognized.
6. If the problem still exist, contact your local service center and
ask an engineer for assistance.
A-14 Notebook PC User Manual