Installing the Google Play store on an Android device consists of enabling unknown sources in the device's settings, downloading the Google Play store APK and installing it; the Google Play store application comes pre-installed on Android devices and isn't available through Google for installation. Third-party sites provide the latest update of the app and lets users download the Android version of an .exe file.
In Android, devices are blocked from downloading an app from any outside sources other than Google Play, when the "Unknown" sources feature is enabled, it bypasses the security feature and allows apps to be accessed from any site. Once the app is installed, it is recommended that the feature is disabled for security and privacy. Online resources like APK Mirror has the Play store APK and is listed as a trusted download source by the Android Pit website.
An alternative method of installing the APK is to download it to a computer or notepad. This gives users the option of running it through virus filters before installing it. Using this method, people save the file on a computer, scan it, and then transfer it to a device via a USB cord. The Unknown Sources feature still needs to be enabled to transfer the file to the device. Once transferred, install it by opening the file and agreeing to its permissions.