((Direct link)) Bluetooth - WiFi Driver : ACER ASPIRE S5-391 ...For Windows...

ACER Aspire S5-series Network Software Support

WIFI + BLUETOOTH DRIVER
Acer Aspire S5-391

For Windows 8-64bit and Windows 8.1-64bit
(Win 8-x64) (Win 8.1-x64) Bluetooth (Atheros) driver
(Win 8-x64) (Win 8.1-x64) WiFi (Atheros) driver

For Windows 7 (x64)
((DRIVER)) Bluetooth (Atheros)
((DRIVER)) WiFi/WLAN (Atheros)

Acer Aspire S5-391-73514G25akk (Aspire S5 Series)
Detail Specifications:

Processor
- Intel Core i7-3517U (Intel Core i7)
Graphics adapter
- Intel HD Graphics 4000,
- Core: 350 - 1150 MHz, Memory: 800 MHz
Memory
- 4GB
- Dual-Channel DDR3-1333
Display
- size : 13.3 inch
- resolution: 1366x768 pixel
- LED backlight
- glossy screen
Mainboard Chipset
- Intel HM77 (Panther Point)
Storage
- 2x Lite-On CMT-128L3M , 256 GB 
Audio
- Speakers: Stereo speakers
- Intel Panther Point PCH - High Definition Audio Controller
Connections
- 2 USB 3.0 / 3.1 Gen1, 1 Thunderbolt, 1 VGA, 1 HDMI
- Audio Connections: Headset (3.5 mm jack)
- Card Reader: 4-in-1 card reader (SD, SDHC, SDXC, MMC)
Network
- Atheros AR5BWB222 Wireless Network Adapter (b/g/n)
- Bluetooth 4.0
Size
- 15 x 324 x 227mm  = 0.59 x 12.76 x 8.94 inch
Battery
- 34 Wh Lithium-Polymer
- 4-cell
- 2310 mAh
Camera
- Webcam: 720p
Weight
1.2 kg