Windows 10 1809 KB4490481: the missing patch arrives, finally

Martin Brinkmann
Apr 3, 2019
Updated • Apr 3, 2019
Windows, Windows 10

Microsoft released the long awaited second cumulative update of the month KB4490481 for Windows 10 version 1809 yesterday evening.

Why did it take so long to release when cumulative updates for all other supported versions of Windows 10 arrived on March 20, 2019? Because Microsoft learned from the mistakes it made when it released Windows 10 version 1809 and subsequent updates.

It appears, that Microsoft pushes updates for the current version of Windows 10 to an extra round of testing, courtesy of the release channel, before it releases it to the general population.

Update: Ran into a System Service Exception error on restart after installing the update on one machine. System Restore fixed the issue, Startup repair did not. End

KB4490481 for Windows 10 version 1809

microsoft windows 10 kb4490481

The update has been released, finally. Administrators may check for updates manually using Windows Update to download KB4490481 to machines. The update is also available as a standalone download on the Microsoft Update Catalog.

Note: The update fixes a huge number of issues and still suffers from the same five known issues that previous versions of Windows 10 version 1809 suffered from.

Here is the list of changes:

  • Fixed the long-standing audio issue that affected Windows 10 PCs with multiple audio devices.
  • Fixed a Game Mode issue that impacted streaming and recording software.
  • New option to activate Insider Builds of Windows 10 Enterprise for Virtual Desktops in Microsoft Azure.
  • Fixed an issue that caused the loss of Favorites or Reading List in Microsoft Edge during updates.
  • Fixed an issue that caused Internet Explorer to stop randomly.
  • Addressed an issue with scrolling ActiveX content in Internet Explorer 11.
  • Fixed an icon file loading issue if badly formatted icon files are encountered.
  • Time Zone information updated for various locations.
  • Fixed an issue with the GDI process that could cause the calling process to stop working under certain conditions.
  • Fixed a networking issue that prevented applications and callers from connecting to destination endpoints when a network interface did not have a default gateway.
  • Fixed a DHCP issue that caused it to reuse an expired lease.
  • Fixed an issue with the RemoteApp window that would make it come to the foreground and to remain active after closing a window.
  • Fixed an issue that prevented the authentication credentials dialog from appearing.
  • Fixed an issue that prevented Modern Apps icons from appearing in the Taskbar or Task Switcher during RemoteApps connections.
  • Fixed an issue that caused certain Modern Apps to fail to launch or stop working.
  • Addressed an issue that caused USB cameras to fail to register correctly for Windows Hello.
  • Added the Group Policy setting "Enable Windows to soft-disconnect a computer from a network".
  • Fixed an issue that caused virtual smart cards from starting with Citrix 7.15.2000 Workstation VDA software.
  • Fixed an issue that prevented users from configuring screens for HDR video playback.
  • Fixed an issue that prevented users from unlocking a device using smart cards.
  • Fixed a memory leak "when a system processes login sessions".
  • Fixed an issue with Always-On-VPN exclusion routes that made them work only for link-local exclusions.
  • Addressed an issue that caused certificate renewal to fail when using CERT_RENEWAL_PROP_ID with the ICertPropertyRenewal interface.
  • Fixed an issue that muted the sound of single-use applications after resuming from Sleep.
  • Addressed an issue to meet GB18030 certificate requirements.
  • Fixed an issue that caused server performance to slow down or servers to stop responding because of "numerous Windows firewall rules". To enable the solution:
    • Open regedit
    • Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy
    • Set the Dword DeleteUserAppContainersOnLogoff to 1.
  • Fixed an issue that prevented the decryption of data (affected encrypted data using DPAPI-NG or group-protected PFX file).
  • Fixed an issue that affected the evaluation of the compatibility status of Windows.
  • Addressed minor issues with unknown options (unknown OPT) in the Extension Mechanisms for DNS (EDNS) for the Windows DNS Server role.
  • Fixed a timing issue when configuring Switch Embedded Teaming that could result in an access violation.
  • Fixed an issue of the Remove-StoragePool PowerShell cmdlet that failed to clear pool metadata on NVDIMM physical disks.
  • X2APIC supported enabled for AMD platforms.
  • Additional Japanese Era name fixes.
  • Fixed an issue that caused slow screen refreshes if applications created and destroyed many child windows.
  • Fixed an issue that caused the Start menu to reset.
  • Addressed an issue that caused Wdiwifi.SYS to stop working with the error "7E (0xc0000005)"

The five known issues (check the support page for potential solutions):

  • Internet Explorer 11 and other applications that use WININET.DLL may have authentication issues.
  • MSXML6 may cause applications to stop responding.
  • Custom URI Schemes for Application Protocol handlers may fail for local Intranet and trusted sites on Internet Explorer.
  • There may be issues using the Preboot Execution Environment to start a device from a WDS server configured to use Variable Window Extension.
  • Per font end-use-defined-characters may cause the system to stop working and may cause blue screens on start.
Windows 10 1809 KB4490481: the missing patch arrives, finally
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Windows 10 1809 KB4490481: the missing patch arrives, finally
Microsoft released the long awaited second cumulative update of the month KB4490481 for Windows 10 version 1809 yesterday evening.
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  1. Dan Donx said on January 15, 2023 at 10:29 am

    What mental age of reader are you targeting with the first sentence? 10?

    Why not write an article on how to *avoid* upgrading from W10 to W11. Analogous to those like me who avoided upgrading from 7 to 10 for as long as possible.

    If your paymaster Microsoft permits it, of course.

  2. Dexter said on January 15, 2023 at 11:14 am

    5. Rufus
    6. Ventoy

    PS. I hate reading these “SEO optimized” articles.

    1. cdr said on January 15, 2023 at 3:32 pm

      I used Rufus to create an installer for a 6th gen intel i5 that had MBR. It upgraded using Setup. No issues except for Win 11 always prompting me to replace my local account. Still using Win 10 Pro on all my other PCs to avoid the bullying.

  3. sv said on January 15, 2023 at 6:40 pm

    bit pointless to upgrade for the sake of upgrading as you never know when you’ll get locked out because ms might suddenly not provide updates to unsupported systems.

    ps…. time travelling?
    written. Jan 15, 2023
    Updated • Jan 13, 2023

    1. Martin Brinkmann said on January 16, 2023 at 5:49 am

      This happens when you schedule a post in WordPress and update it before setting the publication date.

  4. Anonymous said on January 16, 2023 at 8:24 am

    Anyone willing to downgrade to this awful OS must like inflicting themselves with harm.

  5. basingstoke said on January 16, 2023 at 11:18 am

    I have become convinced now that anybody who has no qualms with using Windows 11/10 must fit into one of the following brackets:

    1) Too young to remember a time before W10 and W11 (doesn’t know better)

    2) Wants to play the latest games on their PC above anything else (or deeply needs some software which already dropped W7 support)

    3) Doesn’t know too much about how computers work, worried that they’d be absolutely lost and in trouble without the “”latest security””

    4) Microsoft apologist that tries to justify that the latest “features” and “changes” are actually a good thing, that improve Windows

    5) Uses their computer to do a bare minimum of like 3 different things, browse web, check emails, etc, so really doesn’t fuss

    Obviously that doesn’t cover everyone, there’s also the category that:

    6) Actually liked W7 more than 10, and held out as long as possible before switching, begrudgingly uses 10 now

    Have I missed any group off this list?

    1. Heinz Strunk said on September 19, 2023 at 3:57 pm

      You have missed in this group just about any professional user that uses business software like CAD programs or ERP Programs which are 99% of all professional users from this list.

      Linux doesn’t help anyone who is not a linux kid and apple is just a fancy facebook machine.

  6. ilev said on August 24, 2023 at 7:34 pm

    Microsoft has removed KB5029351 update

    1. EP said on August 24, 2023 at 9:21 pm

      only from windows update though
      KB5029351 is still available from the ms update catalog site

  7. Anonymous said on August 24, 2023 at 11:05 pm

    1. This update is labaled as PREVIEW if it causes issues to unintelligent people, then they shouldn’t have allowed Preview updates ot install.

    2. I have installed it in a 11 years old computer, and no problems at all.

    3. Making a big drama over a bluescreen for an updated labeled as preview is ridiculous.

    This is probably another BS internet drama where people ran programs and scripts that modified the registry until they broke Windows, just for removing stuff that they weren’t even using just for the sake of it.
    Maybe people should stop playing geeks and actually either use Windows 10 or Windows 11, but don’t try to modify things just for the sake of it.

    Sometimes removing or stopping things (like defender is a perfect example) only need intelligence, not scripts or 3rd party programs that might mess with windows.

  8. john said on August 24, 2023 at 11:17 pm

    Windows 11 was a pointless release, it was just created because some of the Windows team wanted to boost sales with some sort of new and improved Windows 10. Instead, Microsoft cannot support one version well let alone two.

    1. John G. said on August 25, 2023 at 12:08 pm

      Windows 11 is the worst ugly shame by Microsoft ever. They should release with every new W11 version a complete free version of Starallback inside just to make this sh** OS functionally again.

  9. EP said on August 25, 2023 at 3:10 pm

    motherboard maker MSI has recently released a statement regarding the “unsupported processor” blue screen error for their boards using Intel 600/700 series chipsets & to avoid the KB5029351 Win11 update:–UNSUPPORTED-PROCESSOR–Error-Message-of-Windows-11-Update-KB5029351-Preview-142215

  10. EP said on August 29, 2023 at 7:32 pm

    check out the following recent articles:

    Neowin – Microsoft puts little blame on its Windows update after UNSUPPORTED PROCESSOR BSOD bug:

    BleepingComputer – Microsoft blames ‘unsupported processor’ blue screens on OEM vendors:

  11. Leonard Britvolli said on August 30, 2023 at 10:33 pm

    While there may be changes or updates to the Windows 10 Store for Business and Education in the future, it is premature to conclude that it will be discontinued based solely on rumors.

  12. sembrador said on September 5, 2023 at 9:32 pm

    My advice, I left win 15 years ago. Now I’m a happy linux user (linuxmint) but there is Centos, Fedora, Ubuntu depending on your needs.

  13. EP said on September 6, 2023 at 11:55 am

    motherboard maker MSI has recently released new BIOS/firmware updates for their Intel 600 & 700 series motherboards to fix the “UNSUPPORTED_PROCESSOR” problem (Sept. 6):–UNSUPPORTED-PROCESSOR–caused-BSOD-on-MSI-s-Intel-700-and-600-Series-Motherboards-142277

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