October 3, 2019 - KB4524157 (Monthly Rollup)

Applies to: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1


IMPORTANT This is a required security update that will be offered to all customers automatically. To help secure your devices, we recommend that you install this update as soon as a possible and restart your PC to fully apply the mitigations. Like all rollup updates, this update supersedes any preceding update.
Note This update does not replace the upcoming October 2019 monthly update, which is scheduled to release on October 8, 2019.

IMPORTANT Verify that you have installed the recommended updates listed in the How to get this update section before installing this update. For all updates starting with August 13, 2019, we strongly recommend that you install these updates to prevent any issues.

IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of some operating systems must follow specific procedures to continue receiving security updates after extended support ends on January 14, 2020. For more information, see KB4522133.

Improvements and fixes

This security update includes improvements and fixes that were a part of updates KB4516046 (September 10, 2019) and KB4516048 (September 24, 2019) and addresses the following issues:

• Addresses an intermittent issue with the print spooler service that may cause print jobs to fail. Some apps may close or generate errors, such as the remote procedure call (RPC) error.

For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

Known issues in this update




How to get this update

Before installing this update

Microsoft strongly recommends that you install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup.

• The latest servicing stack update (SSU) (KB4516655). If you are using Windows Update, the latest SSU will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.
• The latest SHA-2 update (KB4474419) released September 10, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.

Install this update



File information

For a list of the files that are provided in this update, download the file information for update 4524157.

Source: https://support.microsoft.com/en-us/help/4524157


Direct download links for KB4524157 MSU file from Microsoft Update Catalog:

Download KB4524157 MSU for Windows 7 32-bit (x86) - 202.2 MB

Download KB4524157 MSU for Windows 7 64-bit (x64) - 307.5 MB

Posted By: Brink
03 Oct 2019