Windows 8.1 64Bit Drivers

Dell QuickSet Application

Realtek ALC-3221 High-Definition Audio Driver

Dell Inspiron 5521 System BIOS

Intel HM77 Chipset Driver

Intel Management Engine Interface Driver

Realtek Card Reader RTS5179 Driver

Dell Wireless 1704 WiFi + Bluetooth Driver

Dell Wireless 1703/1705 WiFi + Bluetooth Driver

Realtek LAN RTL8105E Ethernet Controller Driver

Intel Centrino Wireless-N 2230 Bluetooth Application

Intel HD Graphics 4000 Driver

AMD Radeon HD 7670M/8730M Driver