Nvstor Service Defaults in Windows 10

NVIDIA® nForce(TM) Sata Performance Driver by NVIDIA Corporation.

Default Settings

Startup type: Manual
Display name:Nvstor
Service name:nvstor
Service type:kernel
Error control:critical
Group:SCSI Miniport
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nvstor

Default Behavior

Nvstor is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Nvstor fails to load or initialize, Windows 10 attempts to record the error details into Event Log and restart the PC, using the Last Known Good configuration. If the Last Known Good configuration cannot be applied or working improperly, Windows 10 startup process halts with a Stop error. If you disable or delete the nvstor service, Windows 10 won't start.

Restore Default Startup Configuration of Nvstor

1. Run the Command Prompt as an administrator.

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

sc config nvstor start= demand

3. Close the command window and restart the computer.

The nvstor service is using the nvstor.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 10 installation media.