Windows 10 Version 20H2/21H1/21H2用のプレビューアップデートKB5015878が公開 - 集中モードの改善など

Microsoftは7月26日(現地時間)、Windows 10 Version 20H2/21H1/21H2用のプレビューアップデートKB5015878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。

July 26, 2022—KB5015878 (OS Builds 19042.1865, 19043.1865, and 19044.1865) Preview

Windows 10 Version 20H2/21H1/21H2用の累積アップデートKB5015878では、集中モードがオンになっているときに、重要な通知を受け取るオプションの追加や、Windows Autopilotの展開シナリオの改良などが行われています。また、DX12を使用するゲームで、ビデオクリップの連続再生に失敗する可能性がある問題の修正や、XAudio APIを使用して効果音を再生する一部のゲームに影響する問題の修正も行われています。

ハイライト:

• 
  New! 
  Gives you the option to receive important notifications when focus assist is on. Focus assist is like a do not disturb mode that hides notifications.

• 
  New!
  Restores functionality for Windows Autopilot deployment scenarios that are affected by the security mitigation for hardware reuse. This update removes the one-time use restriction for self-deploying mode (SDM) and pre-provisioning (PP). This update also re-enables any User Principal Name (UPN) display in user-driven mode (UDM) deployments for approved manufacturers.

• Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.

• Adds functionality that improves the OS upgrade experience. 

• Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.

• Addresses an issue that affects certain games that use the XAudio API to play sound effects.

• Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions.

•  Addresses an issue that prevents certain troubleshooting tools from opening. 

改良と修正:

• 
  New!
  Provides the ability for you to consent to receive important notifications when focus assist is on.

• Reduces the overhead of resource contention in high input/output operations per second (IOPS) scenarios that have many threads contending on a single file.

• Improves the reliability of a push-button reset after an OS upgrade.

• Addresses an issue that makes the tenant restrictions event logging channel inaccessible if you remove the EN-US language pack.

• Addresses an issue that prevents certain troubleshooting tools from opening.

• Updates the Remove-Item cmdlet to properly interact with Microsoft OneDrive folders.

• Addresses an issue that causes certain docking stations to lose internet connectivity when waking from Sleep mode.

• Adds functionality that caches additional audio endpoint information to improve the OS upgrade experience.

• Addresses an issue that might cause consecutive video clip playback to fail in games that use DX12.

• Addresses an issue that affects certain games that use the XAudio API to play sound effects.

• Addresses an issue that causes port mapping conflicts for containers.

• Addresses an issue that causes Code Integrity to continue trusting a file after the file has been modified.

• Addresses an issue that might cause Windows to stop working when you enable Windows Defender Application Control with the Intelligent Security Graph feature turned on.

• Addresses an issue that affects the height of the Search box when you use multiple monitors that have different resolutions as measured dots per inch (DPI).

• Addresses an issue that prevents the Storage Migration Service (SMS) from completing inventory on servers that have many shares. The system logs error event 2509 in Microsoft-Windows-StorageMigrationService/Admin channel (ErrorId=-2146233088/ErrorMessage="Invalid table id").

• Addresses an issue that causes the Windows profile service to fail sporadically. The failure might occur when signing in. The error message is, “gpsvc service failed to sign in. Access denied”.

更新プログラムには以下の4件の既知の不具合が存在します。

Windows Updateの他、Microsoft Update Catalogや、Windows Server Update Services(WSUS)を利用してインストールすることができます。