Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols (EhStorTcgDrv) Service Defaults in Windows 8

Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols
Service name:EhStorTcgDrv
Service type:kernel
Error control:normal
Group:SCSI Class
Path:%SystemRoot%\System32\drivers\EhStorTcgDrv.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EhStorTcgDrv

Default Behavior

The Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols 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 EhStorTcgDrv service hasn't been started.

Restore Default Startup Configuration for Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols

1. Run the Command Prompt as an administrator.

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

sc config EhStorTcgDrv start= demand

3. Close the command window and restart the computer.

The EhStorTcgDrv service is using the EhStorTcgDrv.sys file that is located in the %WinDir%\System32\drivers folder. If the file is corrupted or deleted, you can put it back in there.