ActiveX Installer (AxInstSV) Service Defaults in Windows 10

Provides User Account Control validation for the installation of ActiveX controls from the Internet and enables management of ActiveX control installation based on Group Policy settings. This service is started on demand and if disabled the installation of ActiveX controls will behave according to default browser settings.

Default Settings

Startup type:Manual
Display name:ActiveX Installer (AxInstSV)
Service name:AxInstSV
Service type:share
Error control:normal
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k AxInstSVGroup
File:%SystemRoot%\System32\AxInstSV.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AxInstSV
Privileges:
  • SeAssignPrimaryTokenPrivilege
  • SeIncreaseQuotaPrivilege
  • SeTcbPrivilege
  • SeBackupPrivilege
  • SeRestorePrivilege
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege

Default Behavior

ActiveX Installer (AxInstSV) is a Win32 service. In Windows 10 it is starting only if the user, an application or another service starts it. When the ActiveX Installer (AxInstSV) service is started, it is running as LocalSystem in a shared process of svchost.exe along with other services. If ActiveX Installer (AxInstSV) fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the AxInstSV service has failed to start due to the error.

Dependencies

ActiveX Installer (AxInstSV) cannot be started under any conditions, if the Remote Procedure Call (RPC) service is disabled.

Restore Default Startup Configuration for ActiveX Installer (AxInstSV)

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_AxInstSV_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The AxInstSV service is using the AxInstSV.dll file that is located in the %WinDir%\System32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.