Driver Information 
 Old drivers impact system performance and make your PC and hardware vulnerable to errors and crashes. We suggest you to download the latest drivers.
 Keep your 
High Definition Audio Device driver upto date to maximize its performance, fixing any error related to driver.
 
 
 
 
 High Definition Audio Device is a windows driver. It's released by 
Microsoft  
 Type:    MEDIA 
 Version:   6.1.7601.17514 
 Date:  2010-11-19
   Hardware IDs: 
 
 HDAUDIO\FUNC_01&VEN_10DE&DEV_001C&SUBSYS_17AA21D0&REV_1001
HDAUDIO\FUNC_01&VEN_10DE&DEV_001C&SUBSYS_17AA21D0
  
  Compatible IDs: 
 
 HDAUDIO\FUNC_01&CTLR_VEN_10DE&CTLR_DEV_0E08&VEN_10DE&DEV_001C&REV_1001
HDAUDIO\FUNC_01&CTLR_VEN_10DE&VEN_10DE&DEV_001C&REV_1001
HDAUDIO\FUNC_01&VEN_10DE&DEV_001C&REV_1001
HDAUDIO\FUNC_01&CTLR_VEN_10DE&CTLR_DEV_0E08&VEN_10DE&DEV_001C
HDAUDIO\FUNC_01&CTLR_V  
 The following operating system has used this driver: 
 
  Microsoft Windows 7 Professional  
 Microsoft Windows 7 Ultimate  
 This download is valid for the product(s) listed below:
LENOVO - 4177CTO (ThinkPad T420) 
 LENOVO - 42362K9 (ThinkPad T420) 
Notices:
The software drivers provided on this page are generic versions and can be used for general purposes. However, computer original equipment manufacturers (OEMs) may have altered the features, incorporated customizations, or made other changes to the software or software packaging they provide. To avoid any potential installation incompatibilities on your OEM system, We recommend that you check with your OEM and use the software provided via your system manufacturer. We or the computer original equipment manufacturer (OEM) may not provide technical support for some or all issues that could arise from the usage of this generic version of software drivers.