Welcome to Tom's Hardware Forums,
Your partial statement there leaves me suspecting you need a bluetooth driver for your Acer notebook. Go to this link (Acer Support)
http/support.acer.com/us/en/product/default.aspx?tab=1&modelId=100
Select your model (doubtful I selected the right one there) and you will have a variety of drivers you can download for your machine including for bluetooth
Happy computing