Microsoft's next big Windows 10 feature update is on the way. Just like the Windows 10 October 2020 Update, this upcoming release will be delivered as a cumulative style update for those running the current latest version of Windows 10. This means the update won't take long to install and isn't as big as normal Windows 10 feature updates.
This release doesn't have an official name yet, but we know it
will ship as version 21H1. This update won't include any huge new changes or
features, as it's designed to be minor and only focus in business-critical
additions. Microsoft is planning a bigger Windows 10 feature update for later
this year, codenamed Sun Valley instead.
The most notable new
changes are that the old Microsoft Edge is no longer present, as the new
Microsoft Edge is now being preinstalled and set as default. Microsoft is also
enabling PCs with multiple Windows Hello peripherals to set a default, useful
for when you're docked to a larger display and using an external peripheral for
bio authentication.
Overall, 21H1 for Windows
10 is a minor update, featuring mostly fixes and not much else. We've
highlighted the most notable features below.
OS Details
v Public
name: N/A
v Codename: N/A
v Version: 21H1
v Build: 19043
v Released: N/A
Version 21H1 changelog
New features
v Windows Hello multicamera
support to set the default as the external camera when both external and
internal Windows Hello cameras are present.
v Windows Defender
Application Guard performance improvements including optimizing document
opening scenario times.
v Windows Management
Instrumentation (WMI) Group Policy Service (GPSVC) updating performance
improvement to support remote work scenarios.
v Removed the Microsoft Edge
Legacy desktop application that is out of support and installs the new
Microsoft Edge.
Fixes and other
improvements
v Fixed an issue with zoom
that occurs when using Microsoft Edge IE Mode on devices that use multiple
high-DPI monitors.
v We enabled administrators
to use a Group Policy to enable extended keyboard shortcuts, including Ctrl+S,
for users in Microsoft Edge IE Mode.
v Fixed an issue that
prevents the icon for a Toast collection from appearing in the Action Center if
the icon file's URI contains spaces.
v Fixed an issue that makes
high dynamic range (HDR) screens appear much darker than expected.
v Fixed an issue that causes
video playback to be out of sync in duplicate mode when you use multiple
monitors.
v Fixed an issue that might
cause applications to stop working while you type Japanese characters using the
Microsoft Japanese Input Method Editor (IME) in compatibility mode.
v Fixed an issue that might
cause a device to stop responding during hybrid shutdown.
v Fixed an issue that prevents
users from adjusting or turning off the touchpad because of administrative
settings.
v Fixed a window rendering
issue that causes content in a window to flash frequently when FlipEx is used.
v Fixed a window rendering
issue that causes content in a window to flash frequently when multi-plane
overlay (MPO) is used.
v Fixed an issue with
Japanese input that occurs after focus changes between boxes in Microsoft Edge.
v Fixed an issue that
displays nothing or shows "Computing Filters" indefinitely when you
filter File Explorer search results.
v Fixed an issue that makes
the split layout unavailable for the touch keyboard when you rotate a device to
portrait mode.
v Windows will now inform
users when a child account in the Family Safety plan has administrative
privileges.
v Fixed an issue that
prevents you from closing Toast Notifications using the Close button on
touchscreen devices.
v Fixed an issue with a heap
leak that might cause explorer.exe to consume high amounts of memory.
v Updated the Volgograd,
Russia time zone from UTC+4 to UTC+3.
v Added a new time zone,
UTC+2:00 Juba, for the Republic of South Sudan.
v Fixed an issue with the
Windows Event Log Forwarding client, which returns the first matching
certificate without checking private key permissions. With this update, the
Windows Event Log Forwarding client selects the client's certificate only if
the Network Service has read permissions for the private key.
v Fixed an issue that causes
PowerShell-based monitors to stop working when you enable transcription on the
systems.
v We fixed an issue that
stops BranchCache from working if you activate Windows using Cloud Solution
Provider (CSP) license.
v Fixed an issue that
prevents Windows 10 Home edition devices from upgrading to the Windows 10 Pro
Education edition using mobile device management (MDM) services such as
Microsoft Intune.
v Fixed an issue that
prevents App-V applications from opening and generates error 0xc0000225.
v Fixed an issue in which
some machines enrolled with an MDM service fail to sync if the device
manufacturer's name contains a reserved character.
v Fixed an issue with using a
configuration service provider (CSP) policy to configure a custom setting for
Audit Other Logon/Logoff events. The custom setting fails to take effect.
v Fixed an issue that causes
a system to stop working when no Trusted Platform Module (TPM) is present in
the system. The error code in TpmTasks.dll!TrackTPMStateChanges is c0000005.
v Fixed an issue that causes
multiple instances of explorer.exe to run on a system when AppLocker is enabled
and the system is not on the internet.
v Fixed an issue with
credential roaming when Windows Hello for Business is enabled.
v Fixed an issue that
prevents performance monitoring tools from displaying logged data for single instance
counter objects.
v Fixed an issue that
prevents the Chromium-based Microsoft Edge from working. This issue occurs when
Microsoft Edge is used in combination with Microsoft App-V and fonts are
enabled inside the virtual environment.
v Fixed an issue that might
cause a black screen or delay signing in to Hybrid Azure Active Directory
joined machines. Additionally, there is no access to login.microsoftonline.com.
v Fixed an issue that causes
the system to stop working and generates error code 0xC9.
v Fixed an issue with 7.1
channel audio technology.
v Fixed an issue that turns
on Caps lock unexpectedly when using RemoteApp. 31259510
v Enabled Windows to retrieve
updated printer capabilities to ensure that users have the proper set of
selectable print options.
v Updated support for hole
punch and stapling locations for print jobs with long edge first paper feed
direction on certain printers.
v Fixed an issue with high
memory usage when performing XSLT transforms using MSXLM6.
v Fixed an issue that might
cause File Explorer and other applications to stop responding for several
minutes. This issue occurs after a client reconnects to the corporate network
and attempts to use mapped drives to access file shares on the corporate
network.
v Fixed an issue that
prevents Server Message Block 1 (SMB1) clients from accessing the SMB share
after restarting the LanmanServer service.
v Fixed an issue that might
cause the cluster network interface to stop working for a short time. As a
result, the network interface controller (NIC) is marked as failed. When the
network is operational again, the system might not detect that the NIC is
working and the NIC remains in a failed status.
v Fixed an issue with signing
in to a device that is in the current domain by using the default user profile
of a device that is in a different, but trusted domain. The profile service of
the current domain cannot retrieve the default user profile from the trusted
domain and uses the local default user profile instead.
v Fixed an issue that causes
a device to stop working if you delete files or folders that OneDrive syncs.
v Fixed an issue that
prevents Windows from activating Windows 10, version 2004 using the OA 3.0 key
after installing KB4598291.
v Fixed an issue with
evaluating the compatibility status of the Windows ecosystem to help ensure
application and device compatibility for all updates to Windows.
v Fixed an issue that
prevents users from using the Remote Desktop Protocol (RDP) to connect to a
Windows Server 2019 device that is in Desktop Experience mode.
v Fixed an issue to allow our
enterprise partners to work with the Microsoft Support program to create
customized mitigations.
v Fixed 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.
v Fixed an issue with an HTTP
Keep-Alive connection in Azure Front Door. After completing a previous request
and response to keep the connection open, Azure Front Door will try to reuse
the connection. After an idle timeout, a race condition might occur that closes
the Transmission Control Protocol (TCP) connection. As a result, the client
might fail with an invalid server response.
v Fixed an issue that causes
Remote Desktop sessions to end unexpectedly
v Fixed an elevation of
privilege security vulnerability documented in CVE-2021-1640 related to print
jobs submitted to "FILE:" ports. After installing Windows updates
from March 9, 2021 and later, print jobs that are in a pending state before
restarting the print spooler service or restarting the OS will remain in an
error state. Manually delete the affected print jobs and resubmit them to the
print queue when the print spooler service is online.
v Security updates to the
Windows Shell, Windows Fundamentals, Windows Management, Windows Apps, Windows
User Account Control (UAC), Windows Virtualization, Windows Kernel, the
Microsoft Graphics Component, Internet Explorer, Microsoft Edge Legacy, and
Windows Media.
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