Here’s what’s new for Windows 8.1 this Patch Tuesday

While today's big news are around Microsoft's Developer Day event focused on dual-screen devices and the upcoming Samsung Unpacked event, Microsoft is still on course with Patch Tuesday. In addition to updates for every supported version of Windows 10, there's also a couple of updates for older releases. As you may remember, Windows 7 is actually no longer supported, so these updates are only for Windows 8.1 and Windows Server 2012 R2.

As usual, there are two different updates, a monthly rollup and a security-only update that only includes security fixes. Starting with the security-only update, it's identified as KB4537803, and you can download it manually from here. It's not available through Windows Update. It includes the following fixes:

  • Security updates to Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Windows Fundamentals, Windows Cryptography, Windows Hyper-V, Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, Windows Storage and Filesystems, and Windows Server.

The release also includes one known issue, which has been around for months:

SymptomWorkaround
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

  • Perform the operation from a process that has administrator privilege.
  • Perform the operation from a node that doesn’t have CSV ownership.

Microsoft is working on a resolution and will provide an update in an upcoming release.

As for the monthly rollup, the update is labeled as KB4537821, and it can be downloaded manually from here, though you will get it automatically through Windows Update. It includes the following changes:

  • Disables Microsoft Visual Basic Script (VBScript) by default in the Internet and Restricted sites zones in Internet Explorer and the WebBrowser control.
  • Security updates to Internet Explorer, Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Windows Fundamentals, Windows Cryptography, Windows Hyper-V, Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, Windows Storage and Filesystems, the Microsoft Scripting Engine, and Windows Server.

It also includes the same known issue as the security-only update.

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