

For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully. However, serious problems might occur if you modify the registry incorrectly.
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Important This section, method, or task contains steps that tell you how to modify the registry. To manually stop the driver's service, type the following command:.To manually start the driver's service, type the following command:.To enable the driver's service (and to set it to automatic), type the following command:.To set the driver's service to manual, type the following command:.To disable the driver's service, type the following command:.You should press Enter after you type each command. To do this, type the following commands at an elevated command prompt. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. Note When you no longer require the service to be running, we recommend that you turn off the service again. (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. 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.
