To ensure full functionality, install these key components in order:

The primary resource for your laptop is the Official Acer Aspire 5742G Support Page , which provides all necessary original software and BIOS updates. Because this model uses a hybrid graphics system (NVIDIA Optimus), you must install both the Intel and NVIDIA drivers for the display to work correctly. 1. Essential Drivers for Acer Aspire 5742G

Поддержка продукта - Aspire 5742G | Acer Россия