source : 
support.asus.comDownload ASUS X450LD Windows 8.1 64bit driversBIOS (3)  Version 204
| Description  | BIOS 204 Disable MTK WLAN T77H469.00 ASPM L0s  | 
| File Size  | 2,19 (MBytes) 2014.04.11 update  | 
| Download from ASUS |  | 
Version 203
| Description  | BIOS 203 Update thermal policy  | 
| File Size  | 2,19 (MBytes) 2014.01.29 update  | 
| Download from ASUS |  | 
Version 202
| Description  | BIOS 202 Add HYNIX 4G and SMART 4G SPD table  | 
| File Size  | 2,19 (MBytes) 2014.01.07 update  | 
| Download from ASUS |  | 
 BIOS-Utilities (1) Version V2.42.0
| Description  | Windows BIOS Flash Utility  | 
| File Size  | 381,73 (KBytes) 2013.10.24 update  | 
| Download from ASUS |  | 
 Chipset (1)  Version V9.4.0.1027
| Description  | Intel INF Update Driver  | 
| File Size  | 5,49 (MBytes) 2013.10.28 update  | 
| Download from ASUS |   | 
 ATK (1)  Version V1.0.0031
| Description  | ATKACPI driver and hotkey-related utilities  | 
| File Size  | 12,92 (MBytes) 2013.12.17 update  | 
| Download from ASUS |  | 
 AUDIO (1)  Version V8.65.9.51
| Description  | Conexant Audio Driver (This driver is for Windows 8.1 upgrade.)  | 
| File Size  | 108,84 (MBytes) 2013.11.28 update  | 
| Download from ASUS |   | 
 VGA /  Display (2) Version V10.18.10.3355.02
| Description  | Intel Graphics Driver  | 
| File Size  | 144,31 (MBytes) 2014.01.06 update  | 
| Download from ASUS |  | 
Version V9.18.13.3182
| Description  | nVidia Graphics Driver  | 
| File Size  | 341,89 (MBytes) 2013.12.26 update  | 
| Download from ASUS |  | 
 LAN (1) Version V2.1.0.21
| Description  | Qualcomm Atheros LAN Driver  | 
| File Size  | 6,03 (MBytes) 2013.12.18 update  | 
| Download from ASUS |  | 
 Card Reader (1) Version V20.4.10117.43857
| Description  | Alcor Multi-Card Reader Driver  | 
| File Size  | 16 (MBytes) 2014.01.06 update  | 
| Download from ASUS |  | 
 TouchPad (1)  Version V2.2.7
| Description  | ASUS Smart Gesture (Touchpad Driver)  [Please update ATK Package V1.0.0020 or later in advance]  | 
| File Size  | 27,62 (MBytes) 2013.12.26 update  | 
| Download from ASUS |  | 
 Utilities (5)  Version V2.01.0021
| Description  | ASUS Splendid Video Enhancement Technology  | 
| File Size  | 7,26 (MBytes) 2014.01.06 update  | 
| Download from ASUS |  | 
Version V1.0.0.5
| Description  | Keyboard Device Filter Utility  | 
| File Size  | 160,58 (KBytes) 2013.10.29 update  | 
| Download from ASUS |  | 
Version V3.2.6
| Description  | ASUS Live Update Utility  | 
| File Size  | 11,28 (MBytes) 2013.10.24 update  | 
| Download from ASUS |  | 
Version V3.0.6
| Description  | Power4Gear Hybrid Utility  | 
| File Size  | 12,58 (MBytes) 2013.10.24 update  | 
| Download from ASUS |   | 
Version V3.1.7
| Description  | ASUS USB Charger Plus  | 
| File Size  | 10,55 (MBytes) 2013.10.22 update  | 
| Download from ASUS |   | 
 Wireless (3) Version V10.0.0.270
| Description  | Qualcomm Atheros Wireless Lan Driver and Application  | 
| File Size  | 40,39 (MBytes) 2014.01.06 update  | 
| Download from ASUS |   | 
Version V5.0.37.0
| Description  | Ralink Wireless Lan Driver and Application  | 
| File Size  | 24,86 (MBytes) 2013.12.27 update  | 
| Download from ASUS |  | 
Version V1.0.0.3
| Description  | ASUS Wireless Radio Control (A driver to make you switch Airplane mode(Wireless) On/Off)  | 
| File Size  | 161,84 (KBytes) 2013.12.26 update  | 
| Download from ASUS |  | 
 BlueTooth (2)  Version V8.0.1.308
| Description  | Qualcomm Atheros BlueTooth driver  | 
| File Size  | 97,15 (MBytes) 2014.01.06 update  | 
| Download from ASUS |  | 
Version V11.0.748.2
| Description  | Ralink BlueTooth driver  | 
| File Size  | 83,21 (MBytes) 2013.12.25 update  | 
| Download from ASUS |  | 
 Others (3)  Version V7.1.0.2105
| Description  | Intel® Dynamic Platform and Thermal Framework Drive  | 
| File Size  | 6,62 (MBytes) 2013.12.26 update  | 
| Download from ASUS |  | 
Version V9.5.15.1730
| Description  | Intel Management Engine Interface  | 
| File Size  | 58,97 (MBytes) 2013.10.29 update  | 
| Download from ASUS |   | 
Version V12.8.0.1016
| Description  | Intel Rapid Storage Technology driver  | 
| File Size  | 2,03 (MBytes) 2013.10.29 update  | 
| Download from ASUS |  | 
 Manual (33)  
Version TR8390
| Description  | User’s Manual for Turkish Edition  | 
| File Size  | 13,58 (MBytes) 2013.09.25 update  | 
| Download from ASUS |   | 
Version TH8390
| Description  | User’s Manual for Thai Edition  | 
| File Size  | 11,74 (MBytes) 2013.09.25 update  | 
| Download from ASUS |   | 
Version T8390
| Description  | User’s Manual for Traditional Chinese Edition  | 
| File Size  | 12,05 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version SW8390
| Description  | User’s Manual for Swedish Edition  | 
| File Size  | 10,24 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version SL8390
| Description  | User’s Manual for Slovenian Edition  | 
| File Size  | 11,75 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version SK8390
| Description  | User’s Manual for Slovakian Edition  | 
| File Size  | 11,91 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version SB8390
| Description  | User’s Manual for Serbian Edition  | 
| File Size  | 11,06 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version S8390
| Description  | User’s Manual for Spanish Edition  | 
| File Size  | 10,37 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version RO8390
| Description  | User’s Manual for Romanian Edition  | 
| File Size  | 13,52 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version R8390
| Description  | User’s Manual for Russian Edition  | 
| File Size  | 13,78 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version PL8390
| Description  | User’s Manual for Polish Edition  | 
| File Size  | 11,72 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version PG8390
| Description  | User’s Manual for Portuguese Edition  | 
| File Size  | 12,05 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version NW8390
| Description  | User’s Manual for Norwegian Edition  | 
| File Size  | 10,23 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version LV8390
| Description  | User’s Manual for Latvia Edition  | 
| File Size  | 13 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version LT8390
| Description  | User’s Manual for Lithuanian Edition  | 
| File Size  | 13,01 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version K8390
| Description  | User’s Manual for Korean Edition  | 
| File Size  | 11,8 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version J8390
| Description  | User’s Manual for Japanese Edition  | 
| File Size  | 7,45 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version ID8390
| Description  | User’s Manual for Indonesia Edition  | 
| File Size  | 11,89 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version I8390
| Description  | User’s Manual for Italian Edition  | 
| File Size  | 12,94 (MBytes) 2013.09.25 update  | 
| Download from ASUS |   | 
Version HUG8390
| Description  | User’s Manual for Hungarian Edition  | 
| File Size  | 12,12 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version GK8390
| Description  | User’s Manual for Greek Edition  | 
| File Size  | 11,84 (MBytes) 2013.09.25 update  | 
| Download from ASUS |   | 
Version G8390
| Description  | User’s Manual for German Edition  | 
| File Size  | 11,43 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version FI8390
| Description  | User’s Manual for Finnish Edition  | 
| File Size  | 10,24 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version F8390
| Description  | User’s Manual for French Edition  | 
| File Size  | 10,32 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version EE8390
| Description  | User’s Manual for Estonian Edition  | 
| File Size  | 13 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version E8390
| Description  | User’s Manual for English Edition  | 
| File Size  | 7,36 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version DU8390
| Description  | User’s Manual for Dutch Edition  | 
| File Size  | 11,72 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version DA8390
| Description  | User’s Manual for Danish Edition  | 
| File Size  | 10,22 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version CZ8390
| Description  | User’s Manual for Czech Edition  | 
| File Size  | 11,76 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version CR8390
| Description  | User’s Manual for Croatian Edition  | 
| File Size  | 12,09 (MBytes) 2013.09.25 update  | 
| Download from ASUS |   | 
Version C8390
| Description  | User’s Manual for Simplified Chinese Edition  | 
| File Size  | 10,55 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version BP8390
| Description  | User’s Manual for Brazilian Portuguese Edition  | 
| File Size  | 11,69 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  | 
Version BG8390
| Description  | User’s Manual for Bulgarian Edition  | 
| File Size  | 12,25 (MBytes) 2013.09.25 update  | 
| Download from ASUS |  |