Yes , indeed. When a company drops SA at the end of a contract period, it is entitled to roll out only the current Windows 10 Enterprise LTSB. It cannot later upgrade that version to a newer LTSB when one is released. Customers have a 90-day window to switch the current operating system from Windows 10 Enterprise to Windows 10 Enterprise LTSB.What does LTSB mean for Windows 10?
About LTSB. LTSB is a licensing option for Windows 10 Enterprise and is available only for customers with a Volume License agreement. Each LTSB release receives standard monthly security and reliability updates for an extended 10-year support period. No new features are added over its servicing lifetime.Which versions of windows can be upgraded to Windows 10?
According to the Upgrade Matrix of Windows 10: Windows 7 RTM, Windows 8, and Windows 8.1 RTM can be upgraded to Windows 10 using ISO image. ... Windows 7 SP1 and Windows 8.1 S14 can be upgraded to Windows 10 through media (ISO image) and Windows Update. Windows Phone 8.0 users will have to update to Windows Phone 8.1 and then they can upgrade to Windows 10 through Windows Update.