While standard Home/Pro support has ended, the LTSC version of 1809 will receive security updates until January 2029 .
In Windows 10 1809, Microsoft quietly introduced an experimental API for : SetProcessExclusiveCore . This allowed a process to reserve one or more CPU logical cores entirely for its own use, bypassing the standard scheduler. The OS would not schedule any other thread—kernel or user—on those cores. kernel os windows 10 1809 exclusive
Perhaps the most significant kernel-exclusive change in 1809 was the evolution of and its implementation of Kernel DMA Protection . While standard Home/Pro support has ended, the LTSC
Version 1809 further solidified Microsoft’s "OneCore" philosophy. OneCore is the base layer of the operating system that spans across desktops, servers, IoT devices, and Xbox. In 1809, the kernel API surface was strictly refactored to separate the graphical user interface (GUI) requirements from core execution structures. This allowed for faster virtualization spins and isolated execution environments without loading heavy desktop subsystems. Thread Scheduling and Process Topologies The OS would not schedule any other thread—kernel
The Kernel Transaction Manager coordinates atomic transactions between system objects, registries, and the file system. Version 1809 improved KTM locking mechanisms. By reducing resource contention when multiple services log transactional writes simultaneously, the kernel prevents file system deadlocks and reduces write amplification on underlying storage media.
The 1809 kernel strictly enforced Arbitrary Code Guard. This feature prevents dynamic code generation and modification within a process. By ensuring that memory cannot be both writable and executable at the same time, the kernel effectively shut down common exploit vectors like buffer overflows and heap spraying. Control Flow Guard (CFG)