You need to update your phone to the most recent Microsoft Windows Mobile 8.1 Denim update, which prepares the Lumia series of phones for the Microsoft WM10 update. We've covered this in another how-to article.

The Windows Phone 8.1 Update Emulators package adds additional emulator images to an existing installation of Visual Studio 2015 or Visual Studio 2013 Update 2 or later. With this update installed, you can create and test apps that will run on devices that have Windows Phone 8.1 Update. If the phone does not show the start screen, it necessary to provide a soft reset.A soft reset erases all content in the phone.. Disconnect charger, press and hold Power Button + Volume Down until the phone vibrates.; When the phone vibrates, press and hold Volume Down until the phone displays an exclamation mark.; Press the keys in following order: Volume up, Volume Down, Power, and Volume Down. How to Update Windows 8.1. Updating your Windows 8.1 operating system allows Microsoft to install critical fixes and repair device drivers so your computer can continue to run efficiently. By default, Windows 8.1 installs updates Over-the-cable Updater tool for Windows Phone 8.1 and Windows Mobile 10 Important! Selecting a language below will dynamically change the complete page content to that language. Language: English. DirectX End-User Runtime Web Installer. Download. Close. Updates eligible Windows phones to the latest version of WIndows 10 Mobile Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here's what you need to know about installing this important update. Check to see if it's already installed Note The availability of Windows 10 Mobile as an update for existing Windows Phone 8.1 devices varies by device manufacturer, device model, country or region, mobile operator or service provider, hardware limitations, and other factors. To check for compatibility and other important installation information, see the Windows 10 mobile page. Over the Cable updater tool upgrades eligible Windows Phone 8.1 devices to Windows 10 Mobile using PC to download the updates. Preconditions for OTC upgrade. All available OTA updates should be installed via "Settings -> Phone Update" before upgrading with OTC; PC with Windows operating system and internet connectivity; The device has

The Windows Phone 8.1 update will be officially released in a few months (that's as specific as Microsoft got), while new devices running it will start shipping in late April/early May. It's not specified which WP8 handsets will be treated to the update at this point, but we guess the list will be quite extensive.

This update includes several improvements based on the feedback we've received, and we're happy to be rolling it out after just one month. If you are on the Windows Phone 8.1 Preview for Developers and want to get the update, go to Settings then Phone Update and click "check for updates". 4) Go to Settings -> Phone Update and click 'Check for Updates' You will get the updates up to and including Windows Phone 8.1 Update 1, unless you use an HTC device, which currently cannot receive Update 1. (Sad for me and my HTC 8X) To test if you have the update, try dragging a tile on top of another tile. It should create a folder.

In a recent update to its support page, Microsoft announced it will shut the Windows Phone 8.1 Store on December 16. News of its impending closure was first reported by Softpedia .

4) Go to Settings -> Phone Update and click 'Check for Updates' You will get the updates up to and including Windows Phone 8.1 Update 1, unless you use an HTC device, which currently cannot receive Update 1. (Sad for me and my HTC 8X) To test if you have the update, try dragging a tile on top of another tile. It should create a folder.