Movatterモバイル変換

Applies To

Windows 10, version 2004, all editionsWindows Server version 2004Windows 10, version 20H2, all editionsWindows Server, version 20H2, all editions

Release Date:

3/15/2021

Version:

OS Builds 19041.868 and 19042.868

^2/24/21IMPORTANTAs part of the end of support for Adobe Flash,KB4577586 is now available as an optional update from Windows Update (WU) and Windows Server Update Services (WSUS). Installing KB4577586 will remove Adobe Flash Player permanently from your Windows device. Once installed, you cannot uninstall KB4577586. For more details about Microsoft’s plans, seeUpdate on Adobe Flash Player End of Support.

^11/17/20

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. To view other notes and messages, see the Windows 10, version 2004 update history home page.

Note Follow @WindowsUpdate to find out when new content is published to the release information dashboard.

Highlights

Updates an issue that might cause a blue screen when you attempt to print to certain printers using some apps.

Improvements and fixes

Note To view the list of addressed issues, click or tap the OS name to expand the collapsible section.

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

This non-security update includes quality improvements. Key changes include:

This build includes all the improvements from Windows 10, version 2004.
No additional issues were documented for this release.

This non-security update includes quality improvements. Key changes include:

Addresses an issue that might cause a blue screen when attempting to print to certain printers using some apps and might generate the error, APC_INDEX_MISMATCH.

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

Windows Update Improvements

Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.

Known issues in this update

Symptom	Workaround
When using the Microsoft Japanese Input Method Editor (IME) to enter Kanji characters in an app that automatically allows the input of Furigana characters, you might not get the correct Furigana characters. You might need to enter the Furigana characters manually. NoteThe affected apps are using theImmGetCompositionString() function.	This issue is resolved inKB5005101.
When opening a document in Microsoft Word, Microsoft Excel, or any Microsoft Office applications, you might receive the error, "Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space". This issue only affects devices that have installed Microsoft Office apps from the Microsoft Store and are attempting to open a document that has triggered the use of theProtected View feature.	This issue is resolved usingKnown Issue Rollback (KIR). Please note that it might take up to 24 hours for the resolution to propagate automatically to non-managed devices. Restarting your device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a specialGroup Policy. NoteDevices need to be restarted after configuring the special Group Policy. To find out more about using Group Policies, seeGroup Policy Overview.
After installing updates released March 9, 2021 or March 15, 2021, you might get unexpected results when printing from some apps. Issues might include: Elements of the document might print as solid black/color boxes or might be missing, including barcodes, QR codes, and graphics elements, such as logos. Table lines might be missing. Other alignment or formatting issues might also be present. Printing from some apps or to some printers might result in a blank page or label.	This issue is resolved inKB5001649.

How to get this update

Before installing this update

Prerequisite:

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). If you encounter the error, 0x800f0823 – CBS_E_NEW_SERVICING_STACK_REQUIRED, close the error message and install the last standalone SSU (KB4598481)before installing this LCU. You will not need to install this SSU (KB4598481) again for future updates.

For general information about SSUs, seeServicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Install this update

Release Channel	Available	Next Step
Windows Update and Microsoft Update	Yes	Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the update.
Microsoft Update Catalog	Yes	To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)	No	You can import this update into WSUS manually. See the Microsoft Update Catalog for instructions.

If you want to remove the LCU

To remove the LCU after installing the combined SSU and LCU package, use theDISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command:DISM /online /get-packages.

RunningWindows Update Standalone Installer (wusa.exe) with the/uninstallswitch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 5001567.

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 19041.868 and 19042.868.