SD Storage Port Driver (sdstor) Service Defaults in Windows 8

SD Storage Class Driver by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:SD Storage Port Driver
Service name:sdstor
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sdstor

Default Behavior

The SD Storage Port Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If SD Storage Port Driver fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the sdstor service hasn't been started.

Restore Default Startup Configuration of SD Storage Port Driver

1. Run the Command Prompt as an administrator.

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

sc config sdstor start= demand

3. Close the command window and restart the computer.

The sdstor service is using the sdstor.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 8 installation media.