KB4507455

詳細情報

KB番号	KB4507455
リリース日	2019/07/09
Windowsバージョン	Windows 10 1709
ビルド番号	16299.1268
URL(英語)	https://support.microsoft.com/en-us/help/4507455
URL(日本語)	https://support.microsoft.com/ja-jp/help/4507455
ダウンロード	Microsoft Update Catalog

Updates an issue with BitLocker encryption recovery mode.
Updates to improve security when using Internet Explorer, Microsoft Edge, wireless technologies, and Microsoft Office products.

Provides protections against a variant (CVE-2019-1125) of the Spectre Variant 1 speculative execution side channel vulnerability.
Addresses an issue that may cause BitLocker to go into recovery mode if BitLocker is being provisioned at the same time as updates are being installed.
Security updates to Windows Wireless Networking, Windows Server, Microsoft Scripting Engine, Windows Storage and Filesystems, Microsoft Graphics Component, Internet Explorer, Windows Input and Composition, Windows Virtualization, Windows App Platform and Frameworks, Windows Fundamentals, Windows Kernel, Microsoft Edge, and Windows Cryptography.

Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.	Do one of the following: Perform the operation from a process that has administrator privilege. Perform the operation from a node that doesn’t have CSV ownership. Microsoft is working on a resolution and will provide an update in an upcoming release.
After installing this update, opening or using the Window-Eyes screen reader app may result in an error and some features may not function as expected. Note Users who have already migrated from Window-Eyes to Freedom Scientific's other screen reader, JAWS, should not be affected by this issue.	This issue is resolved in KB4507465.
Devices that start up using Preboot Execution Environment (PXE) images from Windows Deployment Services (WDS) or System Center Configuration Manager (SCCM) may fail to start with the error "Status: 0xc0000001, Info: A required device isn't connected or can't be accessed" after installing this update on a WDS server.	This issue is resolved in KB4512494.

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