LTSB Is the Slowest Moving Branch of Windows 10 - From How-To Geek
There are several “branches” of Windows 10. The most unstable branch is the Insider Preview version of Windows 10. Most Windows PCs are on the “Current Branch”, which is considered the stable branch. Windows 10 Professional users have the option to “Defer Upgrades“, which puts them on the “Current Branch for Business”. This branch will only get new builds of Windows 10, like the Anniversary Preview, a few months after they’ve been tested on the “Current Branch”. It’s like the stable, consumer branch–but slower moving.
But businesses don’t want all their PCs to constantly get big updates, even if they are delayed a few months. Critical infrastructure like ATMs, medical equipment, and PCs that control machines on a factory floor don’t need whizbang features, they need long term stability and few updates that will potentially break things. A PC operating medical equipment in a hospital room doesn’t need new Cortana updates. That’s what Windows 10 LTSB–the “Long Term Servicing Branch”–is for, and it’s only available for the Enterprise edition of Windows 10.
While this is a branch of Windows 10, you can only get it by installing Windows from Windows 10 LTSB installation media. You can get other branches of Windows simply by changing an option within Windows 10 itself, but that isn’t the case here.
Microsoft never ceases to surprise me, so interested folk should read the following :http://www.howtogeek.com/273824/windows-10-without-the-cruft-windows-10-ltsb-explained/