February 25, 2020—KB4537819 (Preview of Monthly Rollup)

Applies to: Windows 8.1Windows Server 2012 R2Windows Embedded 8.1 Industry Enterprise

Improvements and fixes


This non-security update includes improvements and fixes that were a part of KB4537821 (released February 11, 2020) and also includes these new quality improvements as a preview of the next Monthly Rollup update:

  • Addresses an issue that might prevent ActiveX content from loading.
  • Addresses an issue that causes a system to stop responding when unmounting a volume. 

Known issues in this update


Symptom

Workaround

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.

How to get this update


Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Rollup. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

If you are using Windows Update, the latest SSU (KB4524445) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog

Install this update

Release Channel Available Next Step
Windows Update or Microsoft Update Yes This is provided as an Optional update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update.
Microsoft Update Catalog Yes To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS) Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Windows 8.1, Windows Server 2012 R2, Windows Embedded 8.1 Industry Enterprise, Windows Embedded 8.1 Industry Pro

Classification: Updates

 

File information

For a list of the files that are provided in this update, download the file information for update 4537819