With the removal of the popular functionality, Amazon seems to be grooving its users to stick to its ecosystem.

Amazon is closing a method Kindle owners have used to transfer digital books between devices, and the community isn't happy.

Amazon confirmed the removal of the book download feature in a statement to The Verge. “Customers can continue reading books previously downloaded on their Kindle device, and access new content through the Kindle app, Kindle for web, as well as directly through Kindle devices with WiFi capability,” said Amazon spokesperson Jackie Burke.

Amazon is switching off a function that allows Kindle e-books to be downloaded directly to the PC. E-books can then no longer be transferred via USB.