Source : support.dell
Download DELL Inspiron 15 5000 Series (5551) Notebook Driver Windows 7 32bit

Application (1)

Dell Update Application 21 Apr 2015 1.2.1004.0, A05 Download

Audio (1)

Realtek Audio ALC3234 Driver 07 Apr 2015 6.0.1.7433, A00 Download

Chipset (1)

Realtek RTS5170 Card Reader Driver 07 Apr 2015 6.3.9600.39060, A00 Download

Mouse, Keyboard & Input Devices (2)

Dell Touchpad Driver 07 Apr 2015 18.1.48.1, A00 Download

Dell Unifying Application 21 Apr 2015 1.0.44, A00-00 Download

Network (2)

Dell Wireless 1707 Wi-Fi + Bluetooth Driver 07 Apr 2015 10.0.0.299, A00 Download

DELL Inspiron 15 5000 Series (5551) Driver Windows 7 32bit