KB4507435 updates Windows 10 1803 to Build 17134.885 – 9 July 2019

Microsoft unveils KB4507435 cumulative update for Windows 10 1803 which updates this OS to build 17134.885. With this patch update, the company brings security updates for Wireless technologies, Edge web-browser, Internet Explorer, and Microsoft Office products. In addition to this, the team also updates an anomaly that exists with the BitLocker encryption recovery mode.

There are some known issues as well on KB4507435 cumulative as well of which some are of re-occurring nature. Microsoft has provided temporary solutions to these and promised to work upon them in the near future. They also ensure its users to bring some effective solutions on an upcoming release. Today, in this blog post, we guide on how to incorporate these features efficiently on your PC. Aside to this, you may have a look at the complete list of Windows 10 cumulative update.


Fixes and Improvements for Windows 10 1803

Here are the key changes that appear along with this patch update-

  • The Company resolves a bug that was earlier known to bring BitLocker into recovery mode. This occurs only if BitLocker is provisioned exactly at the same time when Updates are being installed.
  • Microsoft brings security updates for following components-
    • Windows Wireless Networking
    • Windows Server
    • Microsoft Scripting Engine
    • Windows Storage and Filesystems
    • Microsoft Graphics Component
    • Windows Kernel
    • Internet Explorer
    • Windows Input and Composition
    • Windows Virtualization
    • Windows App Platform and Frameworks
    • Microsoft Edge
    • Windows Cryptography
    • and Windows Fundamentals

Known Issues on KB4507435

Here are the key issues that appear with this cumulative update-

Symptom Workaround

Windows 10 users may get the error “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)” while performing certain operations like- rename.

This occurs only when you perform renaming of files or folders on a Cluster Shared Volume without administrative privileges which in turn simply fails.

To mitigate this issue, perform any one of the following-

  • Execute the operation using a process that has administrator privilege.
  • Carry out the operation using a node that doesn’t need CSV ownership.

You may receive an update to this trouble on an upcoming release.

The team is investigating some reports in which a few devices displays a black screen when users try to sign in after updating their 1803 OS to KB4507435 cumulative update.

To fix this bug, hold down Ctrl+Alt+Delete hotkey together then choose Power button followed by Restart option. Performing this may start your PC normally.

Microsoft experts are currently working on a resolution to this and may bring the same in an upcoming release.

After installing this update, you may encounter an error while trying to open or use Windows-Eyes screen reader. This may also affect some of the functionalities as well.

Note Users who have already migrated from Window-Eyes to Freedom Scientific’s other screen reader, JAWS, won’t receive such trouble.

The Company is currently working on a resolution to this and may bring the same in an upcoming release.

How to get this KB4507435 update

At first, do download the latest SSU (KB4509094) on your System before applying the current latest cumulative update.

Further, you can have this new KB4507435 patch update automatically for your PC through Windows Update. In case, you don’t want to wait, browse to the following address and download the cumulative update-

 Settings > Update & Security > Windows Update

Once you reach to the above destination, press Check for updates option.

Release Channel Available Next Step
Windows Update and Microsoft Update Yes


You can download and install this automatically from Windows Update section.

Microsoft Update Catalog Yes You can have the Standalone package by visiting here.
Windows Server Update Services (WSUS) Yes

The KB4507435 cumulative update will auto-synchronize with WSUS if you configure Products and Classifications as described below-

Product: Windows 10

Classification: Security Updates

Source: Microsoft Update Catalogue