KSecDD Service Defaults in Windows 7

Kernel Security Support Provider Interface by Microsoft Corporation.

Default Settings

Startup type: Boot
Display name:KSecDD
Service name:KSecDD
Service type:kernel
Error control:critical
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\KSecDD

Default Behavior

KSecDD is a kernel device driver. In Windows 7 it is being loaded by Boot Loader before Kernel initialization. If KSecDD fails to load, Windows 7 attempts to write the error data into Event Log and restart the computer, using the Last Known Good configuration. If the Last Known Good configuration is not valid, Windows 7 startup ends with a Stop error. If you remove or disable the KSecDD service, Windows 7 won't start.

Restore Default Startup Configuration of KSecDD

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config KSecDD start= boot
sc start KSecDD

3. Close the command window and restart the computer.

The KSecDD service is using the ksecdd.sys file that is located in the C:\Windows\System32\Drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.