Learn more about security update 4490628, including improvements and fixes, any known issues, and how to get the update.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Required: Updates for legacy Windows versions will require that SHA-2 code signing support be installed. The support released in March (KB4474419 and KB4490628) will be required in order to continue to receive updates on these versions of Windows.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Learn more about this servicing stack update, including improvements and fixes, any known issues, and how to get the update.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

この更新プログラムは、Windows の更新プログラムをインストールするコンポーネントであるサービス スタックの品質を向上します。 サービス スタック更新プログラム (SSU) をインストールすることで、堅牢で信頼性の高いサービス スタックを利用し、デバイスでマイクロソフトの更新プログラムを受信し、インストールできるようになります。 この更新プログラムは、Windows モジュール インストーラーがファイル操作を不適切に処理する場合に存在する特権の昇格の脆弱性も修正します。 攻撃者がこの脆弱性を悪用した場合、昇格された特権を取得する可能性があります。

摘要 此更新对安装 Windows 更新的服务堆栈组件进行了质量改进。 关键更改包括： 解决了安装仅使用 SHA-2 哈希算法签名的更新时服务堆栈中的问题。 Microsoft 强烈建议你始终在安装最新的每月安全更新之前为操作系统安装最新的服务堆栈更新 (SSU)。