Windows Update KB4540673 is now available for download

Update KB4586793 (Build 17763.1577) for Windows 10, version 1809

11/13/2020 Windows 10 1809 Updates

Microsoft has released cumulative update KB4586793 (OS Build 17763.1577) for Windows 10 (version 1809), Windows 10 LTSC 2019, and Windows Server 2019 (1809). How to download and install a new assembly.


Support for Windows 10, version 1809 has ended. On November 10, 2020, two years after its release, Windows 10 October 2018 Update received the last batch of cumulative updates.

Cumulative update KB4586793 is intended for Windows 10 version 1809 (October 2018 Update) and Windows 10 LTSC 2019 based on x86, x64 (amd64), ARM64, and Windows Server 2019 (1809) for x64-based systems. The update is available as part of Tuesday patches.

Installing via Windows Update

Cumulative update 4586793 is installed automatically through Windows Update. To check, go to Options> Update & Security and click Check for Updates.

A computer restart is required to complete the installation. After the update, the build number of Windows 10 will change to 17763.1577.

Improvements and fixes KB4586793 (17763.1577)

This update includes quality updates. New system functions are not presented. List of key changes:

Adjusted the 2020 DST start date for Fiji Islands to December 20, 2020.
Security updates to Microsoft Scripting Engine, Windows Input and Composition, Microsoft Graphics Component, Windows Wallet Service, Windows Fundamentals, and Windows Kernel.

If you installed previous updates, this time only the new changes in the rollup package will be applied.

Known Issues

After installing update KB4493509, devices that have some Asian language packs installed may receive the error “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND”.

Download update KB4586793

You can also download the update from the Microsoft Update Catalog and manually install it from the link below:

Links to download official updates are below:

Download x64 version
Download x86 version
Download ARM64 version
Windows Server 2019 update version