To reinstall the app once you've purchased it:
For Windows 8.1 or Windows RT 8.1 devices, follow these four simple steps:
- Open the Windows Store and make sure you are logged on with your Store Account.
- On the main screen, Right Click and select Your Apps on the top toolbar.
- In the Drop Down Menus, select All Apps and Sort by name.
- In the Results, Right Click each app that you want to reinstall and click the Install Icon on the bottom toolbar.