The easiest way to do this is using Swiss Transfer, an online tool for sending files. Because user profiles can't access the files from other profiles, you must copy the two APKs somewhere else, log in to the second profile, and copy the APKs to the second profile's files.
Now the two APKs have been saved to the ML Manager folder in your tablet's internal storage. Amazon's Fire OS won't let you have different versions of Play Services and the Play Store installed on each profile (thanks to Florian Wolters on Stack Overflow for pointing this out). The steps are a bit different if you want to add the Play Store for other users on the same device. Since the Play Store isn't a system-level application on Fire tablets, the installation process only applies to the device profile you're currently using.
Install Google Play on other Fire user profiles
Here's a quick guide on how to make your Amazon Fire tablet feel like it's running stock Android. Setting Chrome as the default browser, adding Google Assistant, and changing the homescreen launcher are possible.
With a bit of extra work, you can make your Fire tablet function like a regular Android phone or tablet. Add more Google services and change the launcher If you're looking for some places to start, here are a few things to keep in mind. With these steps finished, you're ready to use the Google Play Store to install the apps and games your heart desires. Transform your Amazon Fire into a regular Android tablet Only download apps from trusted sources, as sideloading is an easy way to subject yourself to vulnerabilities.
This action allows you to open and install applications from downloaded APK files, which is how you'll get the Play Store running. To get started, enable the apps you want to install from outside the Amazon Appstore. For those applications, look on the Amazon Appstore or download from APKMirror.
Once the above is done, install the ADB drivers of Kindle and once they are successfully installed you can root Amazon Kindle Fire HD to install Windows 8. Click on this option and restart the tablet.