If you do a reinstall of Windows 8 or purchase a new computer, you can log into your Windows Store account and retrieve all the apps you have downloaded. Windows 8 allows you use your apps on up to 5 devices. Lets take a quick look at how you do it.
Launch the Store icon on the Start Screen
Right click a blank spot in the Windows Store and click on Your Apps
Here you will see a list of apps you have installed so far. You can also view and choose apps that you might have installed on your other Windows 8 PC’s:
You have the option of choosing just the app you want to install or you can select all and click Install:
Once you have selected your app, wait while it installs.
You can then launch it from the Start Screen.