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
Path:%SystemRoot%\system32\svchost.exe -k AxInstSVGroup
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AxInstSV
  • 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.


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

Restore Default Startup Configuration of ActiveX Installer (AxInstSV)

Before you begin doing this, make sure that all the services on which ActiveX Installer (AxInstSV) 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 AxInstSV start= demand

3. Close the command window and restart the computer.

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