Health Key and Certificate Management (hkmsvc) Service Defaults in Windows 8

Provides X.509 certificate and key management services for the Network Access Protection Agent (NAPAgent). Enforcement technologies that use X.509 certificates may not function properly without this service.

Default Settings

Startup type:Manual
Display name:Health Key and Certificate Management
Service name:hkmsvc
Service type:share
Error control:normal
Object:localSystem
Path:%SystemRoot%\System32\svchost.exe -k netsvcs
File:%SystemRoot%\system32\kmsvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hkmsvc
Privileges:
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege

Default Behavior

Health Key and Certificate Management is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Health Key and Certificate Management service is started, it runs as localSystem in a process of svchost.exe, sharing it with other services. If Health Key and Certificate Management 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 hkmsvc service hasn't been started.

Dependencies

Health Key and Certificate Management can't start, if the Remote Procedure Call (RPC) service is disabled or not available.

Restore Default Startup Configuration for Health Key and Certificate Management

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

2. Save the Win8_hkmsvc_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The hkmsvc service is using the kmsvc.dll file that is located in the %WinDir%\system32 folder. If the file is corrupted or deleted, you can put it back in there.