KB4537764 updates Windows 10 1607 to Build 14393.3504 – 11 Feb 2019

Microsoft releases the first cumulative update of this month (Feb) for Windows 10 1607 that enhances its build number to 14393.3504. KB4537764 is basically a security patch, hence it upgrades almost all Windows components and services including Internet Explorer. 

Apart from the quality fixes and improvements, there are no new bugs that we are aware of in KB4537764. The two known issues that were re-occurring after each cumulative updates, appears here as well. The team is currently exploring resolutions that can resolve these errors. In the meantime, enhance your Windows 10 version 1607 so as to comply with the latest security norms. To see the complete list of Feb’s patches for different OS versions, browse to Windows 10 Cumulative Updates.


KB4537764 for Windows 10 1607 Changelog 

This is primarily a security update which updates the following Windows 10 components and services –

  • Windows Graphics, Windows Input & Composition, Windows Media, Windows Shell, 
    Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Hyper-V, 
    Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, 
    Windows Storage and Filesystems, and Windows Server.
  • Internet Explorer, Microsoft Edge, Microsoft Graphics Component, and The Microsoft 
    Scripting Engine

Known Issues on KB4537764 

The two issues that were popping after each cumulative update remain exactly the same in this build as well. They are –

  1. 2245 (NERR_PasswordTooShort) that appears in case you use 14 or more characters while setting any group Policy. To mitigate this bug, you should alter the “Minimum Password Length” policy to use characters either less than or equal to 14.
  2. STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5) still appears if you ever perform operations using CSV without having Admin rights. To fix this issue, you should try any one of the following –
    • Login as an Admin first then only perform such tasks.
    • Use a CSV node that doesn’t require ownership.

How to download and apply this update

To upgrade your Windows 10 1607 device to Build 14393.3504, use any of the below 3 release channels. However, you need to first install the servicing stack i.e. KB4520724 so as to make the upgrading process smooth and effective. 

1. Windows Update

You will get a notification regarding the KB4537764 patch. If not, you may manually download this navigating to –

Settings > Update & Security > Check for Updates.

2. Microsoft Update Catalog 

Alternatively, you may download the standalone package itself browsing to the official webpage.

3. Windows Server Update Services (WSUS)

The KB4537764 cumulative update will automatically sync with WSUS if you configure Products and Classifications as follows:

  • Product: Windows 10
  • Classification: Security Updates

Release Note