Source : support.dell
Download DELL Inspiron 14 Legacy Inspiron Models (5439) Notebook Driver Windows 8.1 64bit

	Vendor	File	Version	Size
Download	Application	Dell Update Application	1.0.1059.0, A03	6/2/2014
Download	Application	Intel Rapid Start Technology Application	3.0.0.1056, A00	10/16/2013
Download	Application	Dell Quickset Application	11.2.05, A00	10/11/2013
Download	Audio	Realtek High-Definition Audio Driver	6.0.1.7024, A00	10/11/2013
Download	BIOS	Dell Inspiron 5439 System BIOS	A07	5/22/2014
Download	Chipset	Intel Management Engine Interface Driver	9.5.14.1724, A01	10/16/2013
Download	Chipset	Realtek Card Reader RTS5179 Driver	6.2.9200.21239, A00	10/16/2013
Download	Chipset	Intel Chipset Device Software Driver	9.4.0.1026, A00	10/11/2013
Download	Mouse, Keyboard & Input Device	Dell Touchpad Driver	11.3.15.4, A03	6/10/2014
Download	Network	Intel(R) Smart Connect Technology Application	5.0.10.2832, A03	7/25/2014
Download	Network	Intel(R) Wireless-N 7260/2230 Driver	16.5.3.6, A01	11/8/2013
Download	Network	Intel Centrino Wireless-N 7260 Bluetooth Adapter Driver	3.1.1307.360, A00	10/16/2013
Download	Network	Realtek Ethernet Controller Driver	8.20.815.2013, A00	10/11/2013
Download	Security	Validity Fingerprint Sensor Driver	4.5.226.0, A00	10/11/2013
Download	Serial ATA	Intel Rapid Storage Technology Driver	12.8.2.1000, A00	10/16/2013
Download	Serial ATA	SK Hynix Solid State Drive Firmware Update (Firmware)	1010BL00, A02	8/1/2014
Download	Video	nVIDIA Geforce GT 740M Graphics Driver	9.18.13.3165, A01	2/24/2014
Download	Video	Intel HD Graphics Driver	10.18.10.3277, A00	10/11/2013

DELL Inspiron 14 Legacy Inspiron Models (5439) Driver Windows 8.1 64bit