Windows 10 · 21H1 · Release · Optional preview update
Cumulative Update Preview for Windows 10 Version 21H1 (19043.1865)
- Release
- Cumulative update
- KB5015878 — Microsoft's article, opens in a new tab
- amd64
- arm64
- x86
Windows 10 21H1: Servicing ended
AI summary
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Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 19043.1865 or KB5015878 and describe a fault appear here automatically.
In the news
No article names 19043.1865 or KB5015878 yet, and nothing about Windows 10 21H1 was published in its release window. Browse Windows news.