MS15-097: Description of the security update for the graphics component in Windows: September 8, 2015

Important This article contains information that shows how to help lower security settings or how to turn off security features on a computer. You can make these changes to work around a specific problem. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this workaround in your particular environment. If you implement this workaround, you should take any appropriate additional steps to help protect the computer.

Summary

In addition to the changes that are listed for the vulnerabilities that are described in Microsoft Security Bulletin MS15-097, this security bulletin addresses a defense-in-depth update for the secdrv.sys driver, a third-party driver. The update turns off the service for the secdrv.sys driver. This may affect the ability to run some older games.

To learn more about the vulnerabilities, see Microsoft Security Bulletin MS15-097.

More Information

Important
  • All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Known issues in this security update

  • After you install this security update, some programs may not run. (For example, some video games may not run.) To work around this issue, you can temporarily turn on the service for the secdrv.sys driver by running certain commands, or by editing the registry.

    Note When you no longer require the service to be running, we recommend that you turn off the service again.

    Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.

    To do this, type the following commands at an elevated command prompt. You should press Enter after you type each command.
    • To disable the driver's service, type the following command:

      sc config secdrv start= disabled
    • To set the driver's service to manual, type the following command:

      sc config secdrv start= demand
    • To enable the driver's service (and to set it to automatic), type the following command:

      sc config secdrv start=auto
    • To manually start the driver's service, type the following command:

      sc start secdrv
    • To manually stop the driver's service, type the following command:

      sc stop secdrv
ImportantThis section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows


Or, you can edit the registry directly. To do this, follow these steps:
  1. Click Start, click Run, type regedit in the Open box, and then click OK.
  2. Locate and then click the following subkey in the registry:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\secdrv
  3. Right-click Start, and then click Modify.
  4. In the Value data box, do one of the following:

    • Type 4 to disable the driver's service, and then click OK.
    • Type 3 to set the driver's service to manual, and then click OK.
    • Type 2 to set the driver's service to automatic, and then click OK.
  5. Exit Registry Editor.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see
Get security updates automatically.

Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.
Method 2: Microsoft Download Center

More Information

File information
How to obtain help and support for this security update
Thuộc tính

ID Bài viết: 3086255 - Xem lại Lần cuối: 08-09-2015 - Bản sửa đổi: 1

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