Windows 8 Store apps can deliver periodic or real-time information to you that will be displayed as notification updates on your apps' tiles in Start. Apps that you choose to use as lock screen apps
can also show notification updates on the lock screen.
Store apps that are pinned
to Start can update their tiles with text, images, or text and images. Store apps that are set to show status on the lock screen can update the lock screen with text. This tile information is sent from the app provider to you through Windows Notification Service on Microsoft servers, and is then stored locally on your PC.
If you unpin
an app from Start or uninstall
it, the app will no longer receive or display tile notification updates.
If you turn a live tile off
for an app on Start, the app will no longer receive or display tile notification updates.
This tutorial will show you how to clear the current updates to remove personal information displayed on live tiles
for Store apps on your Start
screen in Windows 8
For more information on this, see also: