Windows Image Acquisition (WIA) (StiSvc) Service Defaults in Windows 8

Provides image acquisition services for scanners and cameras.

Default Settings

Startup type: Manual
Display name:Windows Image Acquisition (WIA)
Service name:StiSvc
Service type:own
Error control:normal
Object:NT Authority\LocalService
Path:%SystemRoot%\system32\svchost.exe -k imgsvc
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\StiSvc
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege

Default Behavior

The Windows Image Acquisition (WIA) service is a Win32 program that can be started by the Service Controller and that obeys the service control protocol. In Windows 8 it will not be started until the user starts it. When the Windows Image Acquisition (WIA) service is started, it runs as NT Authority\LocalService in its own process of svchost.exe. If Windows Image Acquisition (WIA) 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 StiSvc service hasn't been started.


Windows Image Acquisition (WIA) can't start, if the Remote Procedure Call (RPC) service is disabled or not available.

Restore Default Startup Configuration of Windows Image Acquisition (WIA)

Before you begin doing this, make sure that all the services on which Windows Image Acquisition (WIA) depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

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

sc config StiSvc start= demand

3. Close the command window and restart the computer.

The StiSvc service is using the wiaservc.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.