Hello,
1.From the Home screen, tap and hold down on the item.
2.Tap the Remove from Device option or the Delete This Sample option (for samples).
3.Restart your Kindle Paperwhite by pressing and holding the power button for 45 seconds (7-15 seconds for a second-generation Kindle Paperwhite).
Thanks.
For More To Go:-
Amazon Kindle Screen Replacement
Kindle Replacement