The end of support for Windows 10 is approaching in October, but two editions will remain supported for two and seven more years, respectively. Windows 10 LTSC 2021 will receive mainstream support until January 12, 2027, and Windows 10 IoT Enterprise LTSC 2021 until January 13, 2032. LTSC versions lack the Windows Store and many modern applications, offering a streamlined experience with essential features only. Activation of LTSC editions requires an enterprise product key, obtainable through a Volume License Agreement. The IoT version is limited to US English, while the standard LTSC supports 38 languages. LTSC editions do not receive version upgrades, remaining on version 21H2 indefinitely. LTSC ISO files are not readily available on the Microsoft download page but can be accessed through the Microsoft portal with an enterprise license. Unauthorized third-party Windows distributions, such as Tiny11 and Atlas OS, exist but may violate Microsoft’s terms of service.