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 a reliability issue with win32kfull.sys introduced in KB4487026.

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. Modify the registry with the two- character abbreviation for Japanese Eras as follows:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras]
"1868 01 01"="明治_明_Meiji_M"
"1912 07 30"="大正_大_Taisho_T"
"1926 12 25"="昭和_昭_Showa_S"
"1989 01 08"="平成_平_Heisei_H"

Microsoft is working on a resolution and will provide an update in an upcoming release.
Applications that use a Microsoft Jet database with the Microsoft Access 95 file format may randomly stop working. For these workarounds, you must install Microsoft Access 2007 or the Microsoft Access 2007 runtime.

Option 1: Convert the database to a newer .mdb file format. This doesn’t require a change to the Connection string.

  1. Use Microsoft Access 2007 or older to open a database that has an older file format.
  2. You will be asked if you would like to convert. Select No to open the database in the current format.
  3. From the Office Button menu, select Save as and select Access 2002-2003 Database.

Option 2: Convert the database to a newer .mdb file format using VBscript. This doesn’t require a change to the Connection string.

1. Save the following vbscript code to a file such as convert2x3x.vbsand update the database names accordingly.

dim dbe
set dbe = CreateObject("DAO.DBEngine.120")
dbe.CompactDatabase "<my2xdb.mdb>", "<mydb3x.mdb>", , 32

2. Run the script from a cmd prompt.

C:\myfolder\> \windows\syswow64\cscript convert2x3x.vbs

Option 3: Convert the database to the .accdb file format using VBscript. To use the .accdb file format, you must change the Connection string after conversion.

1. Save the following vbscript code to a file such as convert2xAce.vbs and update the database names accordingly.

dim dbe
set dbe = CreateObject("DAO.DBEngine.120")
dbe.CompactDatabase "<my2xdb.mdb>", "<mydbACE.accdb>", , 128

2. Run the script from a cmd prompt.

C:\myfolder\> \windows\syswow64\cscript convert2xAce.vbs

Microsoft is working on a resolution and estimates a solution will be available in March 2019.

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.


Source: https://support.microsoft.com/en-us/help/4491101

Direct download links for KB4487018 from Microsoft Update Catalog:

Download KB4487018 MSU for Windows 10 Version 1507 32-bit (x86) - 507.8 MB

Download KB4487018 MSU for Windows 10 Version 1507 64-bit (x64) - 955.0 MB