Windows 10 · Release · Security update (Patch Tuesday)
February 9, 2021—KB4601331 (OS Build 10240.18842) - EXPIRED
- Release
- Cumulative update
- KB4601331 — Microsoft's article, opens in a new tab
What's in this update
Corrects historical daylight savings time (DST) information for the Palestinian Authority. Updates for verifying usernames and passwords. Updates an issue with German translations of Central European Time.
From Microsoft's release notes for KB4601331.
Microsoft's known issues — KB4601331
- Issue Known issue After installing the SSU KB4601390, installation of the Cumulative Update from Windows Update might not progress past 24%. Workaround: This issue was resolved in KB5001079 . To mitigate this issue on devices that have already installed KB4601390 and are not making progress installing KB4601331, restart your device and then follow only steps 1, 2 and 4a from Reset Windows Update components manually. Then restart your device again. KB5001079 should now install from Windows Update when you select "check for updates" or you can wait for it to install automatically. You should then be able to install the latest Cumulative Update from Windows Update. Note KB4601390 has been removed and will no longer be offered to devices.
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 10240.18841 or KB4601331 and describe a fault appear here automatically.
In the news
No article names 10240.18841 or KB4601331 yet, and nothing about Windows 10 was published in its release window. Browse Windows news.
Discussed on the forum
No member thread names 10240.18841 yet.