Mirroring, or casting, content between devices has become increasingly popular in recent years due to advancements in technology and widespread adoption of streaming services such as Netflix and Hulu+. With the rise of smart TVs and gaming consoles like the Sony Bravia Smart TV line-up offering Miracast compatibility out-of-the-box, mirroring your favorite movies straight onto larger screens is now easier than ever. However, what about those times when you're away from home without access to these high-end devices? Fear not! Today we'll show you how to mirror an Android device's screen onto a Roku 3 using just Windows 8.1.

Before proceeding with this tutorial make sure that:

* Your Windows PC is running on either Windows 7 SP1 or later versions (Windows Vista and earlier models are currently unsupported).

* The Miracast technology must be enabled within your computer's BIOS settings.

+ For Intel-based PCs: Press the F2 key during boot-up until you reach the UEFI firmware setup screen. Then navigate to Advanced > USB Devices tab where under 'Legacy USB Support' toggle it On followed only then restarts normally afterwards without any issues!

* Your Android device supports Miracast through a compatible app such as Screen Mirror Pro.

+ Download and install this third-party software from Google Play Store.

Now let's dive into the step-by-step process of mirroring your Android screen onto an Roku 3 using Windows 8.1:

### Step 1: Enable MirCast on Your PC

To begin, you'll need to enable Miracast on both devices before attempting any sort of wireless casting. On a Windows PC running Windows 8 or later versions (Windows RT included), follow these steps:

* Press the Start button and select 'Settings'.

* Navigate through the various categories until you reach 'PC & Devices'.

In the new window that appears, look for the option labeled as 'Miracast' under 'Related Settings'. Checkmark this box to enable Miracash on your Windows 8 or later PC.

### Step 2: Enable MirCast on Your Android Device

Once Mircast is enabled on both devices (PC and Android), you're ready to proceed with casting content wirelessly between them. On an Android device running KitKat (4.x) or higher versions, follow these steps:

* Open the 'Settings' app from your notification drawer.

* Scroll down through the various categories until you reach 'Display'.

* In this new window, look for a sub-menu labeled as 'Cast screen / mirror'.

### Step 3: Cast Your Android Device's Screen onto an Roku 3

With both devices now set up to receive and transmit Miracast signals respectively, it's time to cast your Android device's screen onto the TV via an HDMI cable. On your Windows PC:

* Open 'Settings' again.

* Navigate through the various categories until you reach 'PC & Devices'.

* In this new window, look for a sub-menu labeled as 'Cast / wireless display'.

Your Roku 3 should now appear in this list of available casting devices under its manufacturer's name (Roku Inc. in our case). Select it to establish an Miracast connection between your Windows PC and the streaming device.

### Step 4: Cast Your Android Device's Screen onto a TV via an HDMI Cable

With both devices now connected wirelessly through Miraccast, you're almost ready to cast your Android screen onto the big screen. On your Roku 3:

* Open 'Settings' from the home menu.

* Navigate through the various categories until you reach 'Display'.

* In this new window, look for a sub-menu labeled as 'HDMI-ARC / HDMI Audio Out'.

Ensure that both options under 'HDMI Output Mode' are set to their respective default settings (Auto or Auto) before casting your Android device's screen onto the TV via an HDMI cable.

### Step 5: Cast Your Android Device's Screen Onto a TV via Miracast

With all bases covered, you're finally ready to cast your Android device's screen onto the big screen wirelessly using Miraccast! On both devices:

* Make sure that both devices are connected to the same Wi-Fi network.

+ On your Windows PC: Click on the 'Connect' button next to 'Miracast'.

+ On your Android device: Select the correct casting device (your Windows PC's name should appear in this list).

* Wait for a few seconds until you see a notification pop-up on both devices indicating that an Miraccast connection has been established successfully.

* Cast away! Your Android device's screen will now be mirrored onto your TV via HDMI cable or wirelessly using Miracast.

And there you have it - a step-by-step guide to mirroring your Android device's screen onto an Roku 3 streaming media player from any Windows PC running Windows 8.1 or later versions, provided that both devices are compatible with the Miraccast technology and you've followed all of these instructions carefully!

Windows 8.1 mirror roku 3