What is a .ITEMDATA-MS file?
The .ITEMDATA-MS file is a special kind of computer file that is used by computers running Windows 8, which is a version of the Windows operating system. This file is important because it helps Windows 8 remember how you like your Start screen to look. The Start screen is the first thing you see when you turn on a Windows 8 computer, and it shows lots of little squares or "tiles" that represent different things like the news, the weather, programs on your computer, and apps you've installed.
The .ITEMDATA-MS file keeps track of how these tiles are arranged and how they should appear based on your personal settings. This means if you like to have your weather app show up first, or you want your favorite game to be easy to find, this file helps make that happen by remembering where everything goes.
To find this file, it's usually located in a specific folder on your computer. The path to this folder is [user]\AppData\Roaming\Microsoft\Windows\. Inside this folder, there's a file named appsFolder.itemdata-ms. This is the main file that contains all the information about your Start screen layout. There's also a backup file named appsFolder.itemdata-ms.bak, just in case something goes wrong with the main file, so your settings aren't lost.
Opening or editing this file isn't something that's done with regular programs like Word or Chrome. Instead, it's managed automatically by Windows 8 itself. So, you don't need to open it with a program, because Windows 8 takes care of it for you. It's more of a "behind-the-scenes" file that works in the background to make sure your Start screen looks the way you want it to without you having to do anything special.
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