If you want an easy way to find all apps installed on Windows 8 computers, hit the Windows Key + Q in from either the desktop or the new (metro) interface. This brings up the Search box and will display all of the apps. The benefit of this is you can easily start searching for a particular app too.
Find All Apps Installed in Windows 8
Or on the Start screen, right click an empty area then click All Apps at the bottom. If you’re using a touch screen, swipe from the bottom up to see All Apps and tap it.
This will display all of the apps and you’ll need to hit the Windows Key + Q to use Search.
Or on a touch screen, swipe from the right side of the screen to the left to bring up the Charms, then tap search.