KB3086255
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
Important
This 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:
https://support.microsoft.com/en-ca/hel ... in-windows" onclick="window.open(this.href);return false;
Or, you can edit the registry directly. To do this, follow these steps:
Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then click the following subkey in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\secdrv
Right-click Start, and then click Modify.
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.
Exit Registry Editor.