Microsoftは2月25日(現地時間)、Windows 11 Version 23H2用のプレビューアップデートKB5052094を公開しました。オプション扱いの更新プログラム(プレビュー版)で、多数の不具合が修正されています。Windows Updateの「更新プログラムのチェック」を利用するか、Microsoft Update Catalogからファイルをダウンロードすることで、手動でインストールすることができます。February 25, 2025—KB5052094 (OS Builds 22621.4974 and 22631.4974) PreviewWindows 11 Version 23H2用の更新プログラムKB5052094では、タスクバーのジャンプリストから直接ファイルを共有できる機能が追加されたほか、ファイルエクスプローラーやスタートメニューの不具合の修正が行われています。リリースノートは以下の通りです。ハイライトGradual rolloutA gradual rollout releases updates over a period of time, so users receive them at different times. To see the status of this feature, go to Windows release health dashboard.[Taskbar] New! You can now share files directly from a jump list on the taskbar. Jump lists appear when you right-click an app that has a jump list.[Windows Spotlight] New! There’s a quick and easy way to find out more information about a background image. Simply hover over the image or click the “Learn about this picture” icon. New! This update makes Windows Spotlight easier to find. You’ll notice changes to the icon color and background. Also, the icon will show at the lower right area on your desktop.[Lock screen] New! This update makes it easier tolearn more about the image on your lock screen when you click the “Like” icon.[Narrator] New! There are new functions for Narrator scan mode. Skip past links (n) allows you to go to the text after a link. Use the comma (,) to jump to the start of an item (large table, long list, or another item.) Use the period (.) to jump to the end of an item. This is most helpful when you read long emails, news articles, and wiki pages. Jump to lists (l) allows you to quickly access a list on a web page or in a document. To use these new functions, turn on Narrator first (Windows logo key + Ctrl + Enter). Then turn scan mode on by pressing Caps lock + Spacebar. Note that scan mode is on by default on most web pages (like news articles, wiki page, and so on).[Game Pass Ultimate and PC Game Pass subscribers] New! Some of you might see a new referral card for a PC Game Pass subscription on the Settings home page. With it, you can invite friends and family to try a PC Game Pass for free. If you qualify, the card only appears when you sign in to your PC using your Microsoft account.[File Explorer] New! You can now snooze or turn off the “Start backup” reminder in the File Explorer address bar. This only applies if you are not already backing up your files and folder. To view this new option, right-click Start backup.Fixed: When you enter a URL in the address bar, it might not go to the location.Fixed: The address bar overlaps files when you use the F11 full-screen mode.Fixed: The context menu opens slowly when you right-click cloud files.Thumbnails for cloud files display more consistently in search results.[Start menu] Fixed: The colors are wrong when you open the account manager flyout menu. This occurs when you use a mixed dark and light custom mode in Settings > Personalization > Colors.[Mouse] Fixed: In Settings > Accessibility > Mouse pointer and touch, you can choose a color for the mouse that is not the default. When you chose a color, it reverts to white after the User Account Control (UAC) dialog appears.改良と修正[Settings] New! There is a new home page for commercial customers. Their PCs are managed by an IT admin. You will see two new cards that are relevant to enterprises. One card shows device information. From the other, you can choose the accessibility features you want. Some commercial customers use their Microsoft account on their managed PC. For them, a new card will show all the Microsoft account types that are in use on the device.[Daylight saving time (DST)] This update supports (DST) changes in Paraguay.[dwm.exe] Fixed: It stops responding many times.[Country and Operator Settings Asset] This update brings COSA profiles up to date for certain mobile operators.[Open Secure Shell (OpenSSH) (known issue)] Fixed: The service fails to start, which stops SSH connections. There is no detailed logging, and you must run the sshd.exe process manually.既知の不具合更新プログラムには以下の1件の既知の不具合が存在します。Citrix(All users)Symptom:Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411. The 2411 version of this application was released in December 2024. Affected devices might initially download and apply the January 2025 Windows security update correctly, such as via the Windows Update page in Settings. However, when restarting the device to complete the update installation, an error message with text similar to “Something didn’t go as planned. No need to worry – undoing changes” appears. The device will then revert to the Windows updates previously present on the device. This issue likely affects a limited number of organizations as version 2411 of the SRA application is a new version. Home users are not expected to be affected by this issue. Workaround:Citrix has documented this issue, including a workaround, which can be performed prior to installing the January 2025 Windows security update. For details, see Citrix’s documentation.Microsoft is working with Citrix to address this issue and will update this documentation once a resolution is available. 更新プログラムはWindows Updateの他、Microsoft Update Catalogを利用してインストールすることができます。