[Changelog] Windows 10 Build 17134.556 (KB4480976) for April 2018 update available

This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

• Addresses an issue in Microsoft Edge that fails to trigger the focus event if the focus event listener of an element shifts focuses to another element.
• Addresses an issue that prevents sharing and timeline features and roaming settings from working for accounts that use Chinese, Japanese, and Korean languages.
• Addresses an issue that may prevent some applications from displaying the Help (F1) window correctly.
• Addresses an issue that causes power options to appear on the Windows security screen when the per user group policy to hide power options is set.
• Addresses an issue that prevents links for certain compressed file formats from resolving.
• Addresses an issue that causes BitLocker Network Unlock to fail on generation 2 virtual machines when it’s used in a network that only supports IPv4.
• Addresses a privacy issue with apps that obtain the BroadFileSystemAccess capability without a user’s consent.
• Addresses an issue in which WAM logging causes some applications such as Microsoft Office to stop working.
• Addresses an issue that causes catalog signed scripts, including those shipped as part of Windows, to incorrectly generate a Windows Defender Application Control (WDAC) failure audit event.
• Addresses an issue in which Windows Driver Frameworks causes high CPU utilization. As a result, the user-mode driver stops working when the device resumes from Hibernate (S4).
• Addresses an issue that may cause a 30-second delay when deleting or renaming a link in a Distributed File System (DFS) Namespace. Additionally, renaming a folder may take 30 seconds when multiple users work in a group share simultaneously, and File Explorer stops responding.
• Addresses an issue that prevents you from overwriting a file in a shared folder because of an Access Denied error when a filter driver is loaded.
• Addresses an issue that may cause third-party applications to have difficulty authenticating hotspots.
• Addresses an issue that may cause a blue screen to appear when a Thunderbolt storage device is attached.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.