Microsoft And Windows 10
At Microsoft our mission and values are to help people and businesses throughout the world realize their full potential. Shop Windows 10. Find your next PC. Products for home. Every moment matters. Stay connected all season with slim, stylish Surface Laptop 3. Windows 10 A version of the Windows NT operating system Screenshot of Windows 10 version 20H2, showing the Start Menu and Action Center in light theme Developer Microsoft Written in C, C, C# OS family Microsoft Windows Source model Closed-source Source-available (through Shared Source Initiative) some components open source Released to manufacturing July 15, 2015; 5 years ago (2015.
-->Find information on known issues and the status of the rollout for Windows 10, version 20H2 and Windows Server, version 20H2. Looking for a specific issue? Press CTRL + F (or Command + F if you are using a Mac) and enter your search term(s).
Windows 10, version 20H2 is available for users with devices running Windows 10, versions 1903 and higher who manually seek to “Check for updates” via Windows Update. The recommended servicing status is Semi-Annual Channel. Note We are slowly throttling up availability over the coming weeks to ensure a reliable download experience. As a result, the update may not be offered to you right away. For more details, see How to get the Windows 10 October 2020 Update. |
| Windows 10, version 20H2 is now available Find out how to get the update > | What’s new for IT pros Explore the latest features and servicing innovations in Windows 10, version 20H2 > |
Known issues
This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.
| Summary | Originating update | Status | Last updated |
| 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 | Investigating | 2020-12-11 17:12 PT |
| Stop error when plugging in a Thunderbolt NVMe SSD Devices using Thunderbolt SSDs may receive a stop error 'DRIVER_VERIFIER_DMA_VIOLATION (e6)' when plugging an SSD in. | N/A | Resolved KB4586853 | 2020-11-30 14:00 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 |
| Certificates may not be present after updating to a newer version of Windows 10 Devices in a managed environment using update management tools or ISO images might lose certificates when updating. | N/A | Resolved | 2020-12-11 17:13 PT |
| Issues when using Microsoft IME for Japanese or Chinese languages Users of the Microsoft IME for Japanese or Chinese languages might have issues. | N/A | Resolved KB4586853 | 2020-12-03 14:18 PT |
| Domain controllers in your enterprise might encounter Kerberos authentication issues Authentication and renewal issues for Kerberos ticket after installing updates released November 10, 2020. | OS Build 19042.630 KB4586781 2020-11-10 | Resolved KB4594440 | 2020-11-19 10:00 PT |
| You might receive an error when accessing the sign-in options or users MMC snap-in You might receive the error, 'Your PC will automatically restart in one minute' | N/A | Mitigated | 2020-11-11 18:11 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 | Investigating | 2020-10-20 10:06 PT |
Issue details
December 2020
Automatic input of Furigana might not work as expected | ||
| Status | Originating update | History |
| Mitigated | N/A | Last updated: 2020-12-10, 06:24 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:
Next steps: We are working on a resolution and will provide an update in an upcoming release. | ||
November 2020
Stop error when plugging in a Thunderbolt NVMe SSD | ||
| Status | Originating update | History |
| Resolved KB4586853 | N/A | Resolved: 2020-11-30, 02:00 PT Opened: 2020-11-05, 07:01 PT |
An incompatibility issue has been found with Windows 10, version 2004 or Windows 10, version 20H2 when using an Thunderbolt NVMe Solid State Disk (SSD). On affected devices, when plugging in a Thunderbolt NVMe SSD you might receive a stop error with a blue screen and 'DRIVER_VERIFIER_DMA_VIOLATION (e6) An illegal DMA operation was attempted by a driver being verified.' Affected Windows 10 devices will have at least one Thunderbolt port and any currently available version of the driver file stornvme.sys. To safeguard your update experience, we have applied a compatibility hold on Windows 10 devices with affected drivers from being offered Windows 10, version 2004 or Windows 10, version 20H2. If your organization is using Update Compliance, the safeguard IDs is 29991611. Affected platforms:
Resolution: This issue was resolved in KB4586853 and the safeguard hold has been removed 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 20H2 or Windows 10, version 2004 is offered. | ||
Domain controllers in your enterprise might encounter Kerberos authentication issues | ||
| Status | Originating update | History |
| Resolved KB4594440 | OS Build 19042.630 KB4586781 2020-11-10 | Resolved: 2020-11-19, 10:00 PT Opened: 2020-11-14, 01:39 PT |
After installing KB4586781 on domain controllers (DCs) and read-only domain controllers (RODCs) in your environment, you might encounter Kerberos authentication issues. This is caused by an issue in how CVE-2020-17049 was addressed in these updates. As noted in CVE-2020-17049, there are three registry setting values for PerformTicketSignature to control it, but in the current implementation you might encounter different issues with each setting:
Note This issue only affects Windows Servers, Windows 10 devices and applications in enterprise environments. Affected platforms:
Resolution: This issue was resolved in the out-of-band update KB4594440. It is a cumulative update, so you do not need to apply any previous update before installing it. To get the standalone package for KB4594440, search for it in the Microsoft Update Catalog. You can import this update into Windows Server Update Services (WSUS) manually. See the Microsoft Update Catalog for instructions. Note KB4594440 is not available from Windows Update and will not install automatically. | ||
You might receive an error when accessing the sign-in options or users MMC snap-in | ||
| Status | Originating update | History |
| Mitigated | N/A | Last updated: 2020-11-11, 06:11 PT Opened: 2020-11-05, 07:01 PT |
After updating to Windows 10, version 20H2, you might receive the error in LSASS.exe with the text 'Your PC will automatically restart in one minute' when interacting with any dialog window that lists users, for example accessing the sign-in options settings app page or the users folder in the Local user and groups MMC snap-in. This issue only affects devices in which any of the local built-in accounts have been renamed, such as Administrator or Guest. You might also receive an error in the Application Event log with Event ID 1015 that LSASS.EXE failed with status code C0000374. C0000374 is related to heap corruption. This issue is caused by duplicate built-in user accounts being created with the same security identifiers (SIDs) and relative identifiers (RIDs) during the update to Windows 10, version 20H2. SIDs and RIDs for built-in user accounts are well-known as documented here and must be unique on a given device. To safeguard your update experience, we have applied a compatibility hold on these devices from installing or being offered Windows 10, version 2004 or Windows 10, version 20H2. If your organization is using Update Compliance, the safeguard ID is 30103339. Workaround: For information on how to mitigate this issue, please see KB4592802. Note If you have already encountered this issue on your device, the uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. Affected platforms:
Next steps: We are working on a resolution and will provide an update in an upcoming release. In the coming weeks, we will also provide updated bundles and refreshed media to prevent the issue. Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until the safeguard is removed. | ||
October 2020
Certificates may not be present after updating to a newer version of Windows 10 | ||
| Status | Originating update | History |
| Resolved | N/A | Resolved: 2020-12-11, 05:13 PT Opened: 2020-10-30, 05:16 PT |
System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps. Workaround: If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. Note Within the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change before the default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options. Affected platforms:
Resolution: This issue is now resolved when using the latest feature update bundles and refreshed media. Feature update bundles released November 9, 2020 or later will resolve this issue when deploying via Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager. Refreshed media was released December 3, 2020 on Visual Studio Subscriptions (VSS, formerly MSDN Subscriptions) and December 7, 2020 on Volume Licensing Service Center (VLSC). For information on verifying you're using the refreshed media, see How to address feature update refreshes in your environment. If you are using or creating custom media, you will need to include an update released October 13, 2020 or later. | ||
August 2020
Issues when using Microsoft IME for Japanese or Chinese languages | ||
| Status | Originating update | History |
| Resolved KB4586853 | N/A | Resolved: 2020-12-03, 02:18 PT Opened: 2020-08-31, 12:12 PT |
Users of the Microsoft IME for Japanese or Chinese languages might experience issues when attempting various tasks. Input may have issues, you may receive unexpected results or you may be unable to enter text. For a list of specific issues, see KB4564002. Affected platforms:
Resolution: All IME issues listed in KB4564002 were resolved in KB4586853. | ||
May 2020
Errors or issues during or after updating devices with certain Conexant audio drivers | ||
| Status | Originating update | History |
| Investigating | N/A | Last updated: 2020-12-11, 05:12 PT Opened: 2020-05-27, 12:20 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:
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. | ||
Errors or issues during or after updating devices with Conexant ISST audio drivers | ||
| Status | Originating update | History |
| Investigating | N/A | Last updated: 2020-10-20, 10:06 PT Opened: 2020-05-27, 12:22 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 lower than 7.231.3.0. 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:
Workaround: To mitigate this issue, you will need to check with your device manufacturer (OEM) to see if an updated driver is available and install it. Next steps: Microsoft and Synaptics are working on a resolution 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. | ||
Windows is an operating system, which is a software program that supports basic functions like managing your files and running apps, and uses peripherals like your printer, monitor, keyboard, and mouse. In the past, Windows could be thought of as software existing only on your device. Now with Windows 10, important parts of Windows are based in the cloud, interacting with online services. Learn more about Windows 10.
This article gives concrete examples of how and why Windows sends and gets info for these benefits: to give you access to online services like Outlook, OneDrive, Cortana, Skype, Bing, and Microsoft Store, to personalize your experiences on Windows, to help you keep your preferences and files in sync on all your devices, to help keep your device up to date, and to help us make the next features of Windows ones that you’ll enjoy.
Microsoft And Windows 10
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