February 21, 2019—KB4491101 (OS Build 10240.18135)

Applies to: Windows 10

Improvements and fixes


This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Addresses an issue that may prevent Internet Explorer from loading images that have a backslash (\) in their relative source path.
  • Addresses an issue that causes the error “0x3B_c0000005_win32kfull!vSetPointer" when the kernel mode driver, win32kfull.sys, accesses an invalid memory location.

Known issues in this update


Symptom Workaround
After installing this update, the first character of the Japanese Era name is not recognized as an abbreviation and may cause date parsing issues.

This issue is resolved in KB4489872.

Applications that use a Microsoft Jet database with the Microsoft Access 95 file format may randomly stop working.

This issue is resolved in KB4489872.

After installing this update, users may receive “Error 1309” while installing or uninstalling certain types of MSI and MSP files.

This issue is resolved in KB4489872.

After installing this update, MSXML6 causes applications to stop responding if an exception was thrown during node operations, such as appendChild(), insertBefore(), and moveNode().

The Group Policy editor may stop responding when editing a Group Policy Object (GPO) that contains Group Policy Preferences (GPP) for Internet Explorer 10 settings.
This issue is resolved in KB4493475.

Any compound document (OLE) server application that places embedded objects into Windows Management Framework (WMF) using the PatBlt API may display embedded objects incorrectly.

For example, if you paste a Microsoft Excel worksheet object into a Microsoft Word document, the cells may render with a different background color.
This issue is resolved in KB4493475.

 

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 cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For more information, see Servicing stack updates.

If you are using Windows Update, the latest SSU (KB4093430) will be offered to you automatically. To get the stand-alone package for the latest SSU, go to the Microsoft Update Catalog.

Install this update

To get the standalone package for this update, go to the Microsoft Update Catalog website.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4491101.