App Installer
| App Installer | |
|---|---|
App Installer running on Windows 11 | |
| Developer(s) | Microsoft |
| Initial release | 2016 |
| Stable release | 1.25.340.0
/ March 2025 |
| Operating system | Windows 10, Windows 11 |
| Type | Installer |
App Installer is a software component of Windows 10, introduced in the 2016 Anniversary Update, used for the installation and maintenance of applications packaged in .appx or .appxbundle installation packages; they are loosely relational databases with an XML app manifest. The .appx and .appxbundle files contain either a Win32 or a Universal Windows Platform app, icons for the Start menu and taskbar, a virtualized version of any Windows Registry keys needed, and any other assets needed for the installed app to function.