Windows 10, version 1909 and Windows Server, version 1909

Find information on known issues and the status of the rollout for Windows 10, version 1909 and Windows Server, version 1909. Looking for a specific issue? Press CTRL + F (or Command + F if you are using a Mac) and enter your search term(s).

Current status as of December 5, 2019:
Windows 10, version 1909 is available for any user on a recent version of Windows 10 who manually selects “Check for updates” via Windows Update. The recommended servicing status is Semi-Annual Channel.
 
Beginning today, we will slowly start the phased process to automatically initiate a feature update for devices running the October 2018 Update (Windows 10, version 1809) Home and Pro editions, keeping those devices supported and receiving the monthly updates that are critical to device security and ecosystem health. We are starting this rollout process several months in advance of the end of service date to provide adequate time for a smooth update process.

For information on how users running Windows 10, version 1903 can update to Windows 10, version 1909 in a new, streamlined way, see this post.
 
Note follow @WindowsUpdate on Twitter to find out when new content is published to the release information dashboard.

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
Unable to create local users in Chinese, Japanese and Korean during device setup
You might be unable to create users in Chinese, Japanese and Korean using Input Method Editor (IME) during OOBE.

See details >
OS Build 18363.476

November 12, 2019
KB4524570
Resolved
KB4530684
December 10, 2019
10:00 AM PT
Issues with some older versions of Avast and AVG anti-virus products
Microsoft and Avast has identified compatibility issues with some versions of Avast and AVG Antivirus.

See details >
N/A

Mitigated External
November 25, 2019
05:25 PM PT
Intermittent loss of Wi-Fi connectivity
Some older devices may experience loss of Wi-Fi connectivity due to an outdated Qualcomm driver.

See details >
OS Build 18363.476

November 12, 2019
KB4524570
Resolved External
November 22, 2019
04:10 PM PT
Unable to discover or connect to Bluetooth devices using some Realtek adapters
Microsoft has identified compatibility issues with some versions of Realtek Bluetooth radio drivers.

See details >
OS Build 18363.476

November 12, 2019
KB4524570
Resolved External
November 15, 2019
05:59 PM PT

Issue details

November 2019

DetailsOriginating updateStatusHistory
Issues with some older versions of Avast and AVG anti-virus products
Microsoft and Avast has identified compatibility issues with some older versions of Avast Antivirus and AVG Antivirus that might still be installed by a small number of users. Any application from Avast or AVG that contains Antivirus version 19.5.4444.567 or earlier is affected.

To safeguard your upgrade experience, we have applied a hold on devices with affected Avast and AVG Antivirus from being offered or installing Windows 10, version 1903 or Windows 10, version 1909, until the application is updated.

Affected platforms:
  • Client: Windows 10, version 1909; Windows 10, version 1903
  • Server: Windows Server, version 1909; Windows Server, version 1903
Workaround: Before updating to Windows 10, version 1903 or Windows 10, version 1909, you will need to download and install an updated version of your Avast or AVG application. Guidance for Avast and AVG customers can be found in the following support articles:
Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until a new version of your Avast or AVG application has been installed and the Windows 10, version 1903 or Windows 10, version 1909 feature update has been automatically offered to you.

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N/A

Mitigated External
Last updated:
November 25, 2019
05:25 PM PT

Opened:
November 22, 2019
04:10 PM PT

October 2019

DetailsOriginating updateStatusHistory
Unable to create local users in Chinese, Japanese and Korean during device setup
When setting up a new Windows device using the Out of Box Experience (OOBE), you might be unable to create a local user when using Input Method Editor (IME). This issue might affect you if you are using the IME for Chinese, Japanese, or Korean languages.

Note This issue does not affect using a Microsoft Account during OOBE.

Affected platforms:
  • Client: Windows 10, version 1909; Windows 10, version 1903; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10, version 1709
  • Server: Windows Server, version 1909; Windows Server, version 1903; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server, version 1709
Resolution: This issue was resolved in KB4530684.

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OS Build 18363.476

November 12, 2019
KB4524570
Resolved
KB4530684
Resolved:
December 10, 2019
10:00 AM PT

Opened:
October 29, 2019
05:15 PM PT

May 2019

DetailsOriginating updateStatusHistory
Intermittent loss of Wi-Fi connectivity
Some older devices may experience loss of Wi-Fi connectivity due to an outdated Qualcomm driver. An updated Wi-Fi driver should be available from your device manufacturer (OEM).

To safeguard your upgrade experience, we have applied a hold on devices with affected Qualcomm driver from being offered Windows 10, version 1903 or Windows 10, version 1909, until the updated driver is installed.

Affected platforms:
  • Client: Windows 10, version 1909; Windows 10, version 1903
Resolution: This issue was resolved with an updated Qualcomm Wifi driver and the safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1909 or Windows 10, version 1903.

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OS Build 18363.476

November 12, 2019
KB4524570
Resolved External
Last updated:
November 22, 2019
04:10 PM PT

Opened:
May 21, 2019
07:13 AM PT
Unable to discover or connect to Bluetooth devices using some Realtek adapters
Microsoft has identified compatibility issues with some driver versions for Bluetooth radios made by Realtek. To safeguard your update experience, we have applied a compatibility hold on devices with affected driver versions for Realtek Bluetooth radios from being offered Windows 10, version 1903 or Windows Server, version 1903 until the driver has been updated.

Affected platforms:
  • Client: Windows 10, version 1909; Windows 10, version 1903
  • Server: Windows 10, version 1909; Windows Server, version 1903
Resolution: This issue was resolved with an updated driver for the affected Realtek Bluetooth radio and the safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1909 or Windows 10, version 1903.

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OS Build 18363.476

November 12, 2019
KB4524570
Resolved External
Last updated:
November 15, 2019
05:59 PM PT

Opened:
May 21, 2019
07:29 AM PT