MC715594 – Take action: February 2024 security update is now available Icon

check before: 2024-02-27


Copilot, Windows


Windows Desktop, World tenant


Change type:

Admin impact



The February 2024 security update is now available for Windows 11 and all supported versions of Windows 10. We recommend that you install these updates promptly. For more information about the contents of this update, see the release notes, which are easily accessible from the Windows 11 and Windows 10 update history pages. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. To be informed about the latest updates and releases, follow us on X @WindowsUpdate.

Highlights for the Windows 11, versions 23H2 and 22H2 update:
The Copilot in Windows icon will appear on the right side of the system tray on the taskbar. Also, the display of Show desktop at the rightmost corner of the taskbar will be off by default. To turn it back on, go to Settings > Personalization > Taskbar. You can also right-click the taskbar and choose Taskbar settings. Windows 11 devices will get this new functionality at different times.
This security update includes improvements that were a part of update KB5034204 (released January 23, 2024).
This update addresses an issue that affects Narrator announcements. They are slow when you use Natural Voices.
This update addresses an issue that affects explorer.exe. It might stop responding. This occurs when you restart or shut down a PC that has a controller accessory attached to it.
This update addresses an issue that affects the download of device metadata. Downloads from the Windows Metadata and Internet Services (WMIS) over HTTPS are now more secure.

Short on time? Watch our Windows 11 release notes video for this month's tips.

IMPORTANT After February 2024, there are no more optional, non-security preview releases for Windows 11, version 22H2. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for this version. Windows 11, version 23H2 and Windows 10, version 22H2 will continue to receive security and optional releases.

For instructions on how to install this update for your operating system, see the KB for your OS listed below:
Windows 11, version 23H2: KB5034765
Windows 11, version 22H2: KB5034765
Windows 11, version 21H2: KB5034766
Windows 10, version 22H2: KB5034763
Windows 10, version 21H2: KB5034763
Windows 10 Enterprise LTSC 2019 and Windows Server 2019: KB5034768
Windows 10 LTSB 2016 and Windows Server 2016: KB5034767
Windows 10 LTSB 2015: KB5034774
Windows Server 2022: KB5034770
Windows Server 2012 R2: Monthly Rollup: KB5034819
Windows Server 2012: Monthly Rollup: KB5034830
Windows Server 2008 R2 Service Pack 1: Monthly Rollup: KB5034831 / Security Only: KB5034809

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