Android Virtual Device

I want to run my first App 'Hello World' and want to create AVD, so I could run it using emulator . I am using android studio. When I create AVD with the given below configurations and launch emulator, i receive following error message;

" Starting emulator for AVD 'test'emulator: ERROR: x86 emulation currently requires hardware acceleration! Please ensure Intel HAXM is properly installed and usable. CPU acceleration status: HAX kernel module is not installed! "

I am using following AVD settings:

Device = Nexus 6(5.96", 1440 x 2560:560dpi) Targt = Android 5.0.1 - API Level 21 CPU/ABI = Intel Atom (x86)

My computer configurations are as;

Accer Aspire 5732Z Intel Pentium Processor T4300 (2.1GHz) Memory 4GB

I would appreciate someones help.

Regards UJB