Windows 10, version 1909 and Windows Server, version 1909

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Current status as of April 9, 2021:
On May 11, 2021, the Home and Pro editions of Windows 10, version 1909 and all editions of Windows Server, version 1909 will reach end of service. After that date, devices running these editions will no longer receive monthly security and quality updates containing protections from the latest security threats. We recommend that you update these devices to the latest version of Windows 10 immediately. Education and Enterprise editions of Windows 10, version 1909 will reach end of service May 11, 2022. For information about servicing timelines and lifecycle, see the Windows lifecycle fact sheet and Lifecycle FAQ - Windows.
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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
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 18363.1440
KB5000808
2021-03-09
Resolved
KB5001648
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 18363.1440
KB5000808
2021-03-09
Resolved
KB5001566
2021-03-15
14:00 PT

Issue details

March 2021

Unexpected results when printing from some apps or to some printers

StatusOriginating updateHistory
Resolved KB5001648OS Build 18363.1440
KB5000808
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  KB5001648. 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 KB5001648 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 KB5001648 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 KB5001566OS Build 18363.1440
KB5000808
2021-03-09
Resolved: 2021-03-15, 14:00 PT
Opened: 2021-03-10, 18:04 PT
After installing KB5000808, 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  KB5001566. 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 KB5001566 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.