Microsoftは7月25日(現地時間)、Windows 11 Version 21H2用のプレビューアップデートKB5028245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 25, 2023—KB5028245 (OS Build 22000.2245) Preview
Windows 11 Version 21H2用の更新プログラムKB5028245では、ネットワークゲートウェイへのARP(Address Resolution Protocol)要求が過剰になることがある仮想プライベートネットワーク(VPN)の問題の修正や、システムがスリープから復帰した後、特定のディスプレイやオーディオデバイスが見つからなくなる不具合の修正等が行われています。
リリースノートは以下の通りです。
ハイライト:
This update addresses an issue that affects virtual private networks (VPN). There might be excessive Address Resolution Protocol (ARP) requests to the network gateway. This occurs when the VPN is on a wireless mesh network that uses an aggressive throttling algorithm. Because of this, network performance is poor.
This update addresses an issue that affects certain display and audio devices. They are missing after your system resumes from sleep.
改良と修正:
New!
This update affects the Handwriting Software Input Panel (SIP), the Handwriting Engine, and the Handwriting Embedded Inking Control. They now support GB18030-2022 conformance level 2. Because of this, they meet the level 3 requirements.
This update affects the Windows Push Notification Services (WNS). It makes the connection between the client and the WNS server more reliable.
This update addresses an issue that affects UI Automation and caching mode.
This update addresses an issue that affects the Windows Notification Platform. It fails to send notifications from applications to you.
This update addresses an issue that affects hybrid joined devices. You cannot sign in to them if they are not connected to the internet. This occurs when you use a Windows Hello for Business PIN or biometric credentials. This issue applies to a cloud trust deployment.
This update affects Windows Autopilot profiles. The process to download the Windows Autopilot policy is more resilient. This helps when a network connection might not be fully initialized. This update increases the retry attempts when you try to download the Windows Autopilot profile.
This update addresses an issue that might affect Win32 and Universal Windows Platform (UWP) apps. They might close when devices enter Modern Standby. Modern Standby is an expansion of the Connected Standby power model. This issue occurs if certain Bluetooth Phone Link features are turned on.
This update addresses an issue that affects the Windows Management Instrumentation (WMI) repository. This causes an installation error. The issue occurs when a device does not shut down properly.
This update addresses an issue that affects certain CPUs. There is inconsistent reporting of the L2 cache.
This update addresses an issue that affects Event Forwarding Subscriptions. When you add an Event Channel to the subscription, it forwards events you do not need.
This update enhances hinting for some of the letters of the Verdana Pro font family.
This update affects user mode printer drivers. They unload unexpectedly. This occurs when you print from multiple print queues to the same printer driver.
This update addresses an issue that might affect your computer when you are playing a game. Timeout Detection and Recovery (TDR) errors might occur.
This update affects text edit controls in XAML. You cannot edit the controls again after they become read only. This occurs when you use the new Microsoft Input Method Editor for Japanese, Chinese, and Korean.
This update makes Narrator announce the “Change product key” label.
This update addresses an issue that affects the Defender Firewall Profile. It fails to automatically switch from a LAN that is trusted to a public network.
This update makes Country and Operator Settings Asset (COSA) profiles up to date.
This update addresses a deadlock in Internet Protocol Security (IPsec). When you configure servers with IPsec rules, they stop responding. This issue affects virtual and physical servers.
This update addresses an issue that affects the MPSSV service. The issues causes your system to restart repeatedly. The stop error code is 0xEF.
This update addresses an issue that affects a Clustered Shared Volume (CSV). The CSV fails to come online. This occurs if you enable BitLocker and local CSV managed protectors, and the system recently rotated the BitLocker keys.
This update addresses an issue that causes Windows to fail. This occurs when you use BitLocker on a storage medium that has a large sector size.
This update affects the Windows Kernel Vulnerable Driver Blocklist, DriverSiPolicy.p7b. It adds drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
This update addresses an issue that affects the fastfat file system driver. It stops responding because of a race condition.
This update addresses an issue that affects refsutil.exe. Options, like salvage and leak, do not work properly on Resilient File System (ReFS) volumes.
This update addresses an issue that affects I/O over Server Message Block (SMB). It might fail when you use the LZ77+Huffman compression algorithm.
更新プログラムには既知の不具合は存在しません。
Windows Updateの他、Microsoft Update Catalog利用してインストールすることができます。