ActiveX Installer (AxInstSV) Service Defaults in Windows 8

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 8 it will not be started until the user starts it. When the ActiveX Installer (AxInstSV) service is started, it runs as LocalSystem in a process of svchost.exe, sharing it with other services. If ActiveX Installer (AxInstSV) 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 AxInstSV service hasn't been started.

Dependencies

ActiveX Installer (AxInstSV) can't start, if the Remote Procedure Call (RPC) service is disabled or not available.

Restore Default Startup Configuration for ActiveX Installer (AxInstSV)

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_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 corrupted or deleted, you can put it back in there.