Download the Latest Version of Aircrack-ng for Windows from here:
Extract the Zip file that you downloaded. it will be extracted to aircrack-ng-0.9.3-win Directory.(This directory name will vary based on the exact version that you downloaded.)
Copy the aircrack-ng-0.9.3-win directory to C: Drive. This will create a directory called “aircrack-ng-0.9.3-win”. This main directory contains three subdirectories – “bin”, “src” and “test”.
Prior to using the software, make sure to install the drivers for your particular wireless card. See this link for the instructions.
Oepn the Aircrack-ng GUI.exe inside “bin” subdirectory. The GUI requires .NET Framework 2.0 to run (.NET Frameworks 1.0/1.1 are not able to run this executable, 2.0 or better MUST be installed).
Alternatively, open a command prompt (Start menu → Execute → cmd.exe) and change to the “C:aircrack-ng-0.9-winbin” directory and execute the individual commands.