Microsoft has released yet another new Windows 10 Version 1903 and 1909 security update KB4551762 following the Patch Tuesday update KB4540673. The update KB4551762 with Builds 18362.720 and 18363.720 brings fix for a protocol issue in Microsoft Server Message Block 3.1.1 (SMBv3).

Update highlights:

  • Updates a network communication protocol issue that provides shared access to files, printers, and serial ports.

All improvements and fixes:

Windows 10, version 1909:

This security update includes quality improvements. Key changes include:

  • This build includes all the improvements from Windows 10, version 1903.
  • No additional issues were documented for this release.
Windows 10, version 1903:

This security update includes quality improvements. Key changes include:

  • Security update to the Microsoft Server Message Block 3.1.1 (SMBv3).

Download link:

You can manually download this update by clicking here. If you need help in understanding how to install these updates manually on your PC, you can refer to our step by step noob-friendly tutorial here.