KB4512507 updates Windows 10 1703 to Build 15063.1988 – 13 Aug 2019

Microsoft unveils KB4512507 cumulative update for Windows 10 1703 users which updates the existing OS to build 15063.1988. With this patch, they provide security updates for Bluetooth, networking technologies, and many others. Additionally, the team also introduces some known issues such as – black screen and others.

The company has provided temporary resolutions to these and promised to work upon them in the forthcoming days. Aside to this, you can download KB4512507 as .msi files by visiting the link provided at the end of this guide. Today, in this tutorial, we guide on how to incorporate the improvements associated with the build 15063.1988. Here is the complete catalog of  Windows 10 cumulative updates.


General Improvements and fixes on KB4512507

  • The tech community deals with an issue which usually restricts devices from starting up when you connect them to a domain configured to use MIT Kerberos realms. Having this bug, domain controllers and domain members are affected as well.
  • The company releases the security updates to the following Windows components –

Windows Wireless Networking

Windows App Platform and Frameworks

Windows Storage and Filesystems

Microsoft Scripting Engine

Internet Explorer

Windows Input and Composition

Windows Cryptography

Windows Virtualization

Windows Datacenter Networking

Windows Peripherals

The Microsoft JET Database Engine

Windows MSXML

Windows Server

Microsoft Edge

KB4512507 – Known Issues


When you install this KB4512507, you may encounter the subsequent error while performing a few particular operations like renaming of files or folders – “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. 

Basically, this occurs if you are on a Cluster Shared Volume and perform the above procedures on a CSV owner node without possessing Administrative privileges.

To fix this anomaly, try any of these operations- 

  • Execute this operation using a Process that does have the administrator privilege. 
  • Carry out the functions using a node that doesn’t require CSV ownership.  

The company is working on a resolution. You will get the update in a forthcoming release.

How to get this patch update

At first, ensure to have downloaded and installed the current SSU for your device. The latest servicing stack for this update is (KB4509092). 

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

In alternative ways, navigate to the following path Settings > Update & Security > Windows Update. Now, click on Check for updates option. 

Source – Microsoft Update Catalog