[German]Microsoft has released an unscheduled update KB5052819 for Windows Server 2022 on January 18, 2025, which upgrades the OS build to version 20348.3095. This out-of-band update is intended to fix operating system startup problems that can occur on systems with two or more NUMA nodes.
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The information can be found in the support article January 18, 2025—KB5052819 (OS Build 20348.3095) Out-of-band, where the update for Windows Server 2022 was announced. This non-security update contains quality improvements, which Microsoft describes as follows.
[Non-uniform memory access (NUMA) nodes] Fixed: Some servers that have two or more NUMA nodes fail to start up.
The bug described above, which can lead to start-up problems in systems with two or more NUMA nodes, is therefore fixed.
Non-Uniform Memory Access or NUMA for short is a computer working memory architecture for multiprocessor systems in which each processor has its own "local" working memory, but grants other processors "direct" access to it via a common address space (Distributed Shared Memory). The memory access times for a CPU in such a network therefore depend on whether a memory address is located in the CPU's own "local" memory or in the "external" memory (of another CPU).
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