Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols (EhStorTcgDrv) Service Defaults in Windows 11
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
Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If Microsoft driver for storage devices supporting IEEE 1667 and TCG protocols fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the EhStorTcgDrv service startup failure.
Restore Default Startup Configuration of 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 C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.