Windows 10, version 2004 and Windows Server, version 2004

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Current status as of February 3, 2021
Windows 10, version 2004 is designated for broad deployment. The recommended servicing status is Semi-Annual Channel.
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Known issues

This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.

SummaryOriginating updateStatusLast updated
Microsoft Edge missing after using custom media/ISOs including March 29, 2021 updates
Microsoft Edge missing when installing Windows from custom media/ISOs using updates released March 25, 2021 or later.
OS Build 19041.906
KB5000842
2021-03-29
Resolved
2021-03-29
17:01 PT
Unexpected results when printing from some apps or to some printers
Issues might include missing or solid color graphics, misalignment/formatting issues, or printing of blank pages/labels.
OS Build 19041.867
KB5000802
2021-03-09
Resolved
KB5001649
2021-03-18
19:00 PT
Error when attempting to print to certain printers
You might receive an APC_INDEX_MISMATCH error with a blue screen when attempting to print.
OS Build 19041.867
KB5000802
2021-03-09
Resolved
KB5001567
2021-03-15
14:00 PT
Errors or issues during or after updating devices with Conexant ISST audio drivers
Devices with affected Conexant ISST audio drivers might receive an error or have issues with Windows 10, version 2004.
N/A

Confirmed
2021-01-22
13:43 PT
Errors or issues during or after updating devices with certain Conexant audio drivers
Devices with affected Conexant or Synaptics audio drivers might receive a stop error with a blue screen.
N/A

Confirmed
2021-01-05
17:37 PT
Automatic input of Furigana might not work as expected
In certain circumstances, the automatic Furigana input/conversion feature may not work as expected in apps.
N/A

Mitigated
2020-12-10
18:24 PT

Issue details

March 2021

Microsoft Edge missing after using custom media/ISOs including March 29, 2021 updates

StatusOriginating updateHistory
ResolvedOS Build 19041.906
KB5000842
2021-03-29
Resolved: 2021-03-29, 17:01 PT
Opened: 2021-03-29, 16:15 PT
Devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. This issue is only encountered when custom offline media or ISO images are created by slipstreaming this update into the image without having first installed the standalone Servicing Stack Update (SSU) released March 29, 2021 or later.

Note Devices that connect directly to Windows Update to receive updates are not affected. This includes devices using Windows Update for Business. Any device connecting to Windows Update should always receive the latest versions of the Servicing Stack Update (SSU) and latest cumulative update (LCU) without any extra steps.

Workaround: If you have already encountered this issue by installing the OS using affected custom media, you can mitigate it by directly installing the new Microsoft Edge from here. If you need to broadly deploy the new Microsoft Edge for business, see Download and deploy Microsoft Edge for business

Affected platforms:
  • Client: Windows 10, version 20H2; Windows 10, version 2004
  • Server: Windows Server, version 20H2; Windows Server, version 2004
Resolution: This issue is resolved. To avoid this issue, be sure to first slipstream the Servicing Stack Update (SSU) released March 29, 2021 or later into the custom offline media or ISO image before slipstreaming the latest cumulative update (LCU). To do this with the combined SSU and LCU packages now used for Windows 10, version 20H2 and Windows 10, version 2004, you will need to extract the SSU from the combined package. Use the following steps to extract the using SSU:
  1. Extract the cab from the msu via this command line (using the package for KB5000842 as an example): expand Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab <destination path>
  2. Extract the SSU from the previously extracted cab via this command line: expand Windows10.0-KB5000842-x64.cab /f:* <destination path>
  3. You will then have the SSU cab, in this example named SSU-19041.903-x64.cab. Slipstream this file into your offline image first, then the LCU.


Unexpected results when printing from some apps or to some printers

StatusOriginating updateHistory
Resolved KB5001649OS Build 19041.867
KB5000802
2021-03-09
Resolved: 2021-03-18, 19:00 PT
Opened: 2021-03-18, 17:25 PT
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.
Affected platforms:
  • Client: Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1
  • Server: Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2
Resolution: This issue was resolved in the out-of-band update  KB5001649. It is a cumulative update, so you do not need to apply any previous update before installing it. You will need to Check for updates to install KB5001649 and might need to also select Download and Install. For instructions on how to Check for updates, please see Update Windows 10. You can import this update into Windows Server Update Services (WSUS) manually. See the Microsoft Update Catalog for instructions.

Note KB5001649 is cumulative and addresses both the issue above and the issue addressed in the March 15, 2021 out-of-band release for the APC_INDEX_MISMATCH error with a blue screen.

Error when attempting to print to certain printers

StatusOriginating updateHistory
Resolved KB5001567OS Build 19041.867
KB5000802
2021-03-09
Resolved: 2021-03-15, 14:00 PT
Opened: 2021-03-10, 18:04 PT
After installing KB5000802, you might receive an APC_INDEX_MISMATCH error with a blue screen when attempting to print to certain printers in some apps. This issue affects a subset of Type 3 printer drivers and does not affect printer drivers that are Type 4. If you are unsure which type your printer driver is, use the following steps:
  1. Press the Windows key+r or select Start and type run and select it.
  2. Type printmanagement.msc and press enter or select the OK button.
  3. If Print Management opens, continue to step 4. If you receive the error, Windows can not find 'printmanagement.msc'. then select Start and type manage optional features and select it. Select Add a Feature and type print, select the check box next to Print Management Console and select install. You will now need to start at step 1 again.
  4. Expand Print Servers, expand your computer's name, and select Printers.
  5. You can now see the Driver Type for each of your installed printer drivers.

Workaround: To mitigate the issue, follow the instructions in this video. The Command Prompt commands from the video are as follows (you will need to replace KX driver for Universal printing with the name of your printer, as explained in the video):
  • rundll32 printui.dll,PrintUIEntry /Xg /n “KX driver for Universal printing”
  • rundll32 printui.dll,PrintUIEntry /Xs /n "KX driver for Universal printing" attributes +direct
Affected platforms:
  • Client: Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803
  • Server: Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803
Resolution: This issue was resolved in the out-of-band update  KB5001567. It is a cumulative update, so you do not need to apply any previous update before installing it. You will need to Check for updates to install KB5001567 and might need to also select Download and Install. For instructions on how to Check for updates, please see Update Windows 10. You can import this update into Windows Server Update Services (WSUS) manually. See the Microsoft Update Catalog for instructions.

December 2020

Automatic input of Furigana might not work as expected

StatusOriginating updateHistory
MitigatedN/A

Last updated: 2020-12-10, 18:24 PT
Opened: 2020-12-03, 12:29 PT
When using the Microsoft Japanese Input Method Editor (IME) to enter Kanji characters in an app that automatically allow the input of Furigana characters, you might not get the correct Furigana characters and might need to enter them manually. Note for developers: Affected apps are using the ImmGetCompositionString function.

Workaround: To mitigate this issue, please follow the instructions in Revert to a previous version of an IME (Input Method Editor).

Affected platforms:
  • Client: Windows 10, version 20H2; Windows 10, version 2004
  • Server: Windows Server, version 20H2; Windows Server, version 2004
Next steps: We are working on a resolution and will provide an update in an upcoming release.

May 2020

Errors or issues during or after updating devices with Conexant ISST audio drivers

StatusOriginating updateHistory
ConfirmedN/A

Last updated: 2021-01-22, 13:43 PT
Opened: 2020-05-27, 00:22 PT
Synaptics and Microsoft have found incompatibility issues with certain versions of drivers for Conexant ISST audio driver and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Conexant ISST audio driver might receive an error or experience issues while installing the update or after the device has updated. The affected driver will be named Conexant ISST Audio or Conexant HDAudio Driver under Sound, video and game controllers in Device Manager and have file name uci64a96.dll through uci64a231.dll and a file version of 7.231.3.0 or lower.

To safeguard your update experience, we have applied a compatibility hold on Windows 10 devices with affected Conexant or Synaptics audio drivers installed from being offered Windows 10, version 2004 or Windows Server, version 2004 until the driver has been updated. If your organization is using Update Compliance, the safeguard ID is 25178825.

Affected platforms:
  • Client: Windows 10, version 20H2, Windows 10, version 2004
  • Server: Windows Server, version 20H2, Windows Server, version 2004
Workaround: To mitigate the safeguard, you might need to check with your device manufacturer (OEM) to see if an updated driver is available and install it. If updated drivers are not available for your device and you are offered Windows 10, version 2004 or Windows 10, version 20H2, a small number of devices might roll back to the previous version of Windows 10 when attempting to update. If this occurs, you should attempt to update to Windows 10, version 2004 or Windows 10, version 20H2 again.

Next steps: Microsoft and Synaptics are working on a resolution and will provide an update in an upcoming release. As of January 14, 2021, we are adjusting this safeguard to allow certain devices with the affected driver to update to Windows 10, version 2004 or Windows 10, version 20H2.

Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.

Errors or issues during or after updating devices with certain Conexant audio drivers

StatusOriginating updateHistory
ConfirmedN/A

Last updated: 2021-01-05, 17:37 PT
Opened: 2020-05-27, 00:20 PT
Synaptics and Microsoft have found incompatibility issues with certain versions of drivers for Conexant or Synaptics audio devices and Windows 10, version 2004 (the Windows 10 May 2020 Update). Windows 10 devices with affected Conexant or Synaptics audio drivers might receive a stop error with a blue screen during or after updating to Windows 10, version 2004. The affected driver will be named Conexant HDAudio Driver under Sound, video and game controllers in Device Manager and have versions 8.65.47.53​, 8.65.56.51​, or 8.66.0.0 through 8.66.89.00 for chdrt64.sys or chdrt32.sys.

To safeguard your update experience, we have applied a compatibility hold on Windows 10 devices with affected Conexant or Synaptics audio drivers installed from being offered Windows 10, version 2004 or Windows Server, version 2004 until the driver has been updated. If your organization is using Update Compliance, the safeguard IDs are 25702617, 25702660, 25702662, and 25702673.

Affected platforms:
  • Client: Windows 10, version 20H2, Windows 10, version 2004
  • Server: Windows Server, version 20H2, Windows Server, version 2004
Next steps: Microsoft and Synaptics are working on a resolution for safeguard IDs 25702617 and 25702660, and will provide an update in an upcoming release. Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.

Resolution: This issue was resolved for safeguard IDs 25702662 and 25702673. The safeguard hold has been removed for these safeguard IDs as of December 11, 2020. Please note, if there are no other safeguards that affect your device, it can take up to 48 hours before the update to Windows 10, version 2004 or Windows 10, version 20H2 is offered.