Did you have this problem before you "upgraded" to Win 8 ? Have you tried using the OS the laptop was designed for ? I would try that...if you still have the issue, return the laptop for repair/replacement. The manufacturer could say it's not their fault as the laptop was designed for Win 7...etc.
Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit
* A clear conscience is usually a sign of bad memory *