How do I upgrade Win8.1 from the App Store?

There are a number of ways to upgrade Win8.1 at the moment, such as udate updates, direct installation of the win8.1 system, or the simplest App Store update, and here's how to update Win8.1 from the App Store. Win8

The first necessary condition is to log in to your Microsoft account on the Internet, or you will not be able to download various applications or any other updates in the store.

Second, enter the application store, you can see the download of Windows 8.1 Professional version of the preview, but may also for some reason, you will not find these prompts, you can open the Microsoft Update page in IE browser (Microsoft Update page), click the "Get Updates" button, Follow the prompts to operate.

The KB2849636 update is automatically downloaded and installed, and it is recommended that you create a special restore point before you install it, or create a USB recovery drive. Restart Windows 8, after entering the start screen, you will see the appropriate message, click "Go to the App Store", click the "Download" button, will soon start the download process, like installing a normal update, patiently wait a moment.

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