In Windows 8 and Windows 8.1, the Windows Store handles your app updates automatically. However, this doesn't mean that your apps are updated very fast. As always when working with updates, there is a delay between when updates are released and when they are available on your PC or device. But, Windows does give you the option to force a manual check for app updates, so that you can install them as quickly as you need. Here's how to manually check for app updates, in the Windows Store.
How to Access App Updates in the Windows Store
First, open the Windows Store app. Then, bring up the charms and click or tap Settings. If you don't know how to work with the charms, read this guide: What are the Charms & How to Use them.
Then, click or tap App updates.
Here you will find settings related to how the Windows Store handles app updates. By default, it is set to automatically update your apps. If you don't want to do that, set the "Automatically update my apps" switch to No.
How to Manually Check for Updates in the Windows Store
If you want the Windows Store to make a manual search for app updates, click or tap "Check for updates".
If updates are found, you will see the apps that have updates available.
If no updates are found, you are informed.
If you want to update the apps for which there are updates available, click or tap Install on the bottom toolbar.
As you can see from in this guide, making manual checks for app updates is not very difficult. You just have to remember that this is done using the Settings charm. If you have any questions about this subject, don't hesitate to ask via the comments form below.