How do i turn on my acer aspire 4738 laptop bluetooth device on?

Here are steps:
Download the bluetooth driver from acer website
Install it restart your pc
Then press the bluetooth button which is on the top(above function keys)
Then right click on the file you wanna send through bluetooth then send via bluetooth
bluetooth adapter driver ENGLISH version
http://support.acer-euro.com/documents/reports/blue_share_eng.pdf
you will need to connect your bluetooth device with a usb lead then make both your computer and the bluetooth drvice discoverable also you might downoald software

http://download.cnet.com/%7Bvalue=http://www.download.com/bluetoothview/3000-2648_4-10800572.html
Runs in the background, and monitors the activity of Bluetooth devices around you. The BluetoothView application was designed to be a small tools that runs in the background, and monitors the activity of Bluetooth devices around you.
hope this helps you