However you need to approve the permissions required to pursue the setup. Download Andy OS and start installing it on your PC (Mac and Windows). Nothing was ever this easy before and without any harmful effects or virus How to Download Andy OS on PC & Laptop (Windows / Mac) Step 1: Download / Install Andy OS. This will give you the best user experience that you need to run Android app on your PC. Double-click on the APK file and the AndyOS will automatically start downloading the file on your computer.