Windows 8 Services

CNG Hardware Assist algorithm provider - Windows 8 Service

CNG Hardware Assist algorithm provider.

This service also exists in Windows 10.

Startup Type

Since CNG Hardware Assist algorithm provider is a kernel driver, its startup might be configured depending on installed hardware. Changing its startup configuration might cause unexpected hardware issues. In the table below you can see how it is configured on my system, but your default settings might differ from mine.

Windows 8 edition Windows 8 Windows 8.1 Windows 8.1 Update 1
Core Disabled Disabled Disabled
Pro Disabled Disabled Disabled
Enterprise Disabled Disabled Disabled

Default Properties

Display name:CNG Hardware Assist algorithm provider
Service name:cnghwassist
Error control:normal

Default Behavior

The CNG Hardware Assist algorithm provider service is a kernel mode driver. If CNG Hardware Assist algorithm provider fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the cnghwassist service has failed to start.

Restore Default Startup Type of CNG Hardware Assist algorithm provider

Automated Restore

1. Select your Windows 8 release and edition, and then click on the Download button below.

2. Save the RestoreCNGHardwareAssistalgorithmproviderWindows8.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer.

Note. Make sure that the cnghwassist.sys file exists in the %WinDir%\System32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 8 installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.