This post fromMiniToolintroduces what it is and how to download and install it.
What Is Windows RT
What is Windows RT?
Windows RT is a tablet operating system, which is a special edition of Windows 8.
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It runs on ARM and it can be used with Intel x86 computers.
Windows RT has been updated to Windows RT 8.1.
Windows RT is optimized for thin and light PCs with longer battery life and is designed for mobile living.

Windows RT 8.1 only runs built-in apps or apps you download from the Windows Store.
Tip: Microsoft ended the mainstream support for Windows RT/Windows RT 8.1 in January 2018.
However, extended support will continue until January 10, 2023.
This post tells you how to enable/disable/configure it.
When you first start your equipment, the full-screen Start menu displays live tiles that update throughout the day.
The Start menu screen is customizable.
it’s possible for you to pin your favorite apps and resize their tiles.
Swiping up from the bottom of the screen displays a list of all currently installed apps.
Windows RT only has a limited amount of software installed.
While traditional desktops are accessible, there are very few options there.
There are File Explorer, Internet Explorer, and Office RT in desktop mode.
Which Devices Run Windows RT?
The following are the devices that can be used to run Windows RT/Windows RT 8.1.
How to Download Windows RT?
Step 1: Go to theWindows RT downloadpage.
Step 2: Click theDownloadbutton to start the downloading process.
Step 3: Choose a path to store the download package.
There may be some W10 features available for these devices if you believe some of the third-party tech sites.
But not the full Windows 10.
There are several ways you’ve got the option to personalize your Windows RT 8.1 PC.
You need 2250 MB of free space on your hard drive to update to Windows RT 8.1.