September 26, 2023—KB5030300 (OS Build 19045.3516) Preview

 Highlights

• New! This update brings back an improved search box experience on the taskbar. If you have a top, bottom, regular, or small icons taskbar, you will see the search box appear. You can use it to easily access apps, files, settings, and more from Windows and the web. You will also have access to the latest search updates, such as search highlights. If you want to restore your previous search experience, you can do that easily. Use the taskbar shortcut menu or respond to a dialog that appears when you use search.

• New! This update adds animations to a few icons on the news and interests taskbar button. These animations occur when:

  • A new announcement appears on the news and interests taskbar button.

  • You hover over or click the icon while the announcement is on the taskbar.

• This update addresses an issue that affects Microsoft Excel. It stops responding when you try to share a file as a PDF in Outlook.

• This update addresses an issue that affects the touch keyboard. Sometimes it does not open.

Improvements

This non-security update includes quality improvements. When you install this KB:

• New! This update completes the work to comply with the GB18030-2022 requirements. It removes and remaps characters for Microsoft Wubi input and Microsoft Pinyin U-mode input. You can no longer enter character codepoints that are not supported. All the required codepoints are up to date.

• This update supports daylight saving time (DST) changes in Greenland.

• This update changes the spelling of Ukraine's capital from Kiev to Kyiv.

• This update addresses an issue that is related to changes in the forwarding of events.

• This update addresses an issue that affects an Application Virtualization (App-V) environment. Copy operations within it stop working. This occurs after you install the April 2023 update.

• This update addresses an issue that affects the Simple Certificate Enrollment Protocol (SCEP) certificate. The system reports some SCEP certificate installations as failed. Instead, the system should report them as pending.

• This update addresses an issue that affects Microsoft Print to PDF. It uses the metadata for the name you sign in with as the author of a printed PDF. It should use the display name instead.

• This update addresses an issue that affects some USB printers. Microsoft Defender stops them from printing.

• This update addresses an issue that affects device health. Some devices cannot attest to their security health.

• This update addresses an issue that affects Windows Defender Application Control (WDAC). AppID Tagging policies might greatly increase how long it takes your device to start up.

• This update addresses an issue that affects IMEPad. It stops working. This occurs when you enter end-user-defined characters (EUDC).

• This update addresses an issue that affects application compatibility. It is related to Microsoft Defender for Endpoint.

• This update addresses an issue that affects Remote Apps. The display of some elements is not aligned correctly.

• This update addresses an issue that affects toast notifications. They might not appear when you use UI Automation tools to read them.

• This update addresses an issue that affects the Microsoft Distributed Transaction Coordinator (DTC). It has a handle leak. Because of this, the system runs out of memory.

• This update addresses an issue that might cause a user-mode memory leak. It might occur when you call CopyFile() or MoveFile().

• This update addresses an issue that might make Windows stop responding. This might occur if you use Microsoft OneDrive files that are compressed by NTFS.

• This update addresses an issue that affects external binding. It fails. This occurs after you install Windows updates dated May 2023 or later. Because of this, there are issues that affect LDAP queries and authentication.

• This update addresses a known issue that affects ClickOnce. Apps that you used ClickOnce to deploy might begin to prompt for installation. This occurs even when the ClickOnce apps are already installed and marked as “trusted”.

• This update addresses an issue that affects Windows Hello for Business. Its user interface (UI) stops responding. This occurs after you enroll in biometric authentication.

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

Known issues in this update

How to get this update

Before installing this update

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Prerequisite:

Based on your installation scenario, choose one of the following:

1. For offline OS image servicing:

   If your image does not have the March 22, 2022 (KB5011543) or later LCU, you must install the special standalone May 10, 2022 SSU (KB5014032) before installing this update.

2. For Windows Server Update Services (WSUS) deployment or when installing the standalone package from Microsoft Update Catalog: 

   If your devices do not have the May 11, 2021 (KB5003173) or later LCU, you must install the special standalone August 10, 2021 SSU (KB5005260) before installing this update.

Install this update

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5030300.  

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 19045.3505.