KB4512508 updates Windows 10 19H1 to Build 18362.295 – 13 Aug 2019

Microsoft unveils KB4512508 cumulative update for Windows 10 19H1 users which updates the existing OS to build 18362.295. With this patch update, there come security patches for Windows components such as – cryptography, Linux, Kernel, Filesystems, and others.

The team resolves the devices connected to a domain (MIT Kerberos realms ) issue as well. There are some known issues on this release which will come into effect after installing this KB4512508 update. Let’s explore them in detail-


General Improvements and fixes on KB4512508

  • Earlier, if your device is connected to a domain configured to use MIT Kerberos realms, it simply won’t startup or rather creates a redirect loop. The team has addressed this trouble on Build 18362.295. Owing to this bug, domain controllers and domain members are affected as well.
  • Moreover, the Company rolls the security updates for the following Windows Components-
Windows App Platform and Frameworks
Windows Storage and Filesystems
Microsoft Scripting Engine
Windows Input and Composition
Windows Wireless Networking
Windows Cryptography
Windows Datacenter Networking
Windows Virtualization
Windows Storage and Filesystems
Microsoft JET Database Engine
Windows Linux
Windows Kernel
Windows Server
Windows MSXML
Internet Explorer 
Microsoft Edge

KB4512508 – Known Issues


Users may receive a new error message when they attempt to start Windows Sandbox on their device. This is –

“ERROR_FILE_NOT_FOUND (0x80070002)”

Note: This bug appears only on those PCs in which users have changed the default operating system language prior to updating their existing OS to Windows 10 19H1.

The Company is currently working on a resolution to this issue and may bring the same in future releases.

Devices that use PXE images from WDS or SCCM may fail on the following error- 

“Status: 0xc0000001, Info: A required device isn’t connected or can’t be accessed”

  • PXE – Preboot Execution Environment
  • WDS – Windows Deployment Services
  • SCCM – System Center Configuration Manager

This bug re-surfaces after installing KB4512508 on a WDS server.

To mitigate this trouble, see KB4512816.

The experts are working on a resolution and will provide an update in an upcoming release.

How to get this patch update

Before downloading this security update, do download and install the current SSU for your PC. This, in turn, will make sure that this process remains smooth and error-free. The latest servicing stack for this update is (KB4508433). 

By default, you will receive a notification regarding this patch update through the Windows Update section. However, you can download its standalone package manually as well through the Update Catalog.

Alternatively, navigate to the following path Settings > Update & Security > Windows Update and hit Check for updates option. 

Source – Microsoft Update Catalog