After you install this security update, some programs may not run.To learn more about the vulnerabilities, see Microsoft Security Bulletin MS15-097. This may affect the ability to run some older games. The update turns off the service for the secdrv.sys driver. 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.
