"Human Interface Device Access" is a Windows 7 service that "Enables generic input access to Human Interface Devices (HID), which activates and maintains the use of predefined hot buttons on keyboards, remote controls, and other multimedia devices. If this service is stopped, hot buttons controlled by this service will no longer function. If this service is disabled, any services that explicitly depend on it will fail to start." "Human Interface Device Access" service is provided by hidserv.dll DLL file.

Detailed information on "Human Interface Device Access" service:

Service name: hidserv
Display name: Human Interface Device Access
Execution command: 
   C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted
Start type: Manual
Service status: Started
Dependencies: None

"Human Interface Device Access" service is provided by a DLL file called: hidserv.dll:

Name: hidserv.dll
Location: C:\Windows\System32\hidserv.dll
Description: HID Service
File version: 6.1.7600.16385
Size: 48.0 KB (49,152 bytes)
Modified: Monday, July 13, 2009, 9:15:24 PM
Product name: Microsoft Windows Operating System
Vendor: Microsoft Corporation

Disabling "Human Interface Device Access" service should not cause any issues when running Windows 7 system.