Once you are done with the Installation of Kindle app for the Windows 10 computer, register the application to your Amazon account.
Note:- Amazon account is necessary to register the app, without Amazon login credentials, you cannot complete the registration process. So, if you do not have an Amazon account, create it now.
If you experience that you are unable to download Kindle for Windows 10, there are few troubleshooting steps you can try to fix the issue before you contact for the Kindle support. Some times, this technical glitch even occurs due to the bad wireless connection and app often get downloaded in the second attempt.
Have little patience and try downloading the app after some time. If you still have the same problem, here are some troubleshooting solutions to try: