Since the built-in update mechanism may no longer work on KitKat, you must "sideload" the APK:
The Play Store requires "Google Play Services" to run. If your device never had Google apps (common on some Chinese tablets), you may also need to install the Google Services Framework Are you experiencing a specific error message Download Google Play Store Android 4.4 2
While Android 4.4.2 is an operating system from 2013, millions of devices are still running this version today—especially budget tablets, older Kindle Fires, and hand-me-down phones. Unfortunately, finding the correct version of the Play Store that actually functions on this older architecture can be tricky. Since the built-in update mechanism may no longer
Android 4.4.2 is . The last security patch was released years ago, and modern SSL certificates may fail. If you absolutely must keep the device: Android 4