Computerworld - https://www.computerworld.com/article/3250464/microsoft-windows/faq-windows-10-ltsb-explained.html#tk.rss_all
Windows 10 will power to its third anniversary this summer, but one branch, identified by the initials L-T-S-B, remains an enigma to most corporate users.
LTSB, which stands for “Long-term Servicing Branch,” was among the pillars of Windows 10 in the months leading up to, and for months after, the mid-2015 roll-out of the operating system. For a time, it seemed that it had a shot at becoming the Windows 10 for enterprise because it was seen as a calm port in a storm of radical change.
That hasn’t happened, in part because Microsoft has steered customers away from LTSB.
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