KB4493464 cumulative update takes Windows 10 1803 to Build 17134.706

Microsoft brings KB4493464 cumulative update for Windows 10 1803 users and this will upgrade your System to build 17134.706. This is the last delta update for this version, however, security and quality updates will continue coming through express or patch-up updates.

The Company has not included any new operating features, still, it contains some quality fixes. Here, in this guide, we will discuss general improvements and fixes along with known issues on this build. Let’s explore this in detail-


General Improvements and fixes- Windows 10 1803

The key changes which appear with KB4493464 cumulative update are as follow-

  1. They provide protection against Spectre Variant 2 (CVE-2017-5715)  & Meltdown (CVE-2017-5754) for VIA- based Systems. These protections will stay enabled for Windows Clients, however disabled in general on Windows servers. If you want to enable or disable these mitigations on Windows Client (IT Pro), click here (KB4073119) to follow the instructions. For Windows Server guidance, you can follow a standard procedure in KB4072698.
  2. The Company fixes the stop error which pops up while trying to start the SSH client program through Windows Subsystem for Linux i.e. WSL. This occurs only when agent forwarding is enabled with the help of a command-line switch which is (ssh- A) or a configuration string.
  3. Earlier, applications that use MSXML6 stop responding the moment an exception is thrown while node operations. They resolve this error as well.
  4. KB4493464 addresses an issue that lets GPE stop responding while editing a GPO which contains GPP for IE 10 internet settings. Here GPE stands for group policy editor, GPO for group policy object and GPP for group policy preferences.
  5. Earlier when you enable per font EUDC, an issue occurs which results in BSOD error right at start-up. They have fixed this issue with this release on Windows 10 version 1803.
  6. Several applications of Windows 10 like- Microsoft Scripting Engine, Windows Storage and Filesystems, Windows Graphics receive security updates.

If you have installed an earlier update, only the fixes which came along with this release will get downloaded then installed on your System.

Known Issues- Build KB4493464

Issue #1

After you install this patch-up, custom URI Schemes (for some application protocol handlers) might not start the respective app for local intranet or trusted sites on IE.

Sol– If you do face such issues on local intranet or Internet Explorer, try following workarounds-

Fix 1: Make a right-click on the URL link then choose open in new window or tab option.

Fix 2: You can enable protected mode on Internet Explorer for trusted sites or a local intranet. Here are the steps to follow-

  • At first, go and browse the following path-
Tools > Internet options > Security
  • Here, select local intranet option under Select a zone to view or change security settings.
  • Henceforth, choose Enable protected mode option.
  • At last, hit OK and reboot your PC.

This will make sure that the changes made on the system so far come into effect. This will alone solve the bug on your PC, however if not, wait for the next cumulative update as Microsoft is working on a resolution.

Issue #2

Some Users come to know of certain issues when they install this update release on their System. Errors that appear are PXE fails to start a device on the WDS server which is configured to use variable Windows Extension.

  • PXE- Preboot Execution Environment
  • WDS- Windows Development Services

This occurs as a connection to the WDS server terminate automatically, hence the image couldn’t be downloaded.

Note: This bug doesn’t affect those clients who are not using this Variable Windows Extension.

Sol– You can try any of these three fixes to fix this known issue-

Fix 1: Open Command prompt as administrator thereafter copy & paste below command line then press Enter.

Wdsutil /Set-TransportServer /EnableTftpVariableWindowExtension:No

Fix 2: You can resolve this trouble using Windows Deployment Services UI as well. Here is the procedure-

  • At first, open Windows Deployment Services from Windows Administrative Tools.
  • Now expand Servers then make a right-click on the WDS server.
  • Again, open its properties thereafter clear the Enable Variable Window Extension box on the TFTP tab.

Fix 3: If the above two fixes don’t help you, try this method as last resort.

  • At first, navigate to the following path-
  • Succeeding after, alter the value of this particular entry to ‘0’.

At last, disable the Variable Windows Extension henceforth reboot the WDSServer services.

The Company is working on a resolution to this and may provide the solution in its upcoming release.

How to get this update

If you are going to install this KB4493464, make sure to install the latest Servicing stack update (SSU) i.e. (KB4485449) on your System as well. This will enhance the overall reliability of the whole update process.

You will receive this update automatically on the Windows Update section. In case you don’t receive the same, you can follow these steps to install the latest cumulative update manually on your PC.

  • At first, browse to the following path.
Settings --> Update & Security --> Windows Update

To get the standalone package, visit Microsoft Update Catalog.