Here was my solution to no bluetooth: first, I have an Acer Aspire S7-391 with Windows 8 pre-loaded. Not Samsung, but because Qualcomm
Atheros is at the heart of my issue too I'm posting here. I think this is a Qualcomm problem -- not Win8). This is long but may help others (since it seems to be a common problem). Short version is that you may have to take some steps on your own, with no
help from Acer update manager or Windows 8.
Out of the box I got the S7 set up quickly, including W-Fi. sweet. The Acer update manager came up and listed two updates, and I figured it was good to grab those, since who knows when the computer was actually built, etc. Very slow download
for two items: Intel HD Graphics Driver; and Qualcomm Atheros Bluetooth Suite (64) 8.0.0.222, including Qualcomm Atheros WiFi driver installation 11.43. Fine, done, I figure they're installed.
Moving on to my Acer Bluetooth mouse now, which came in the box with the S7 (was only using touchscreen and keypad up to this point), I see nothing in instrux about how to connect the mouse. I search the web and find a post on the Acer website,
which is when I realize Bluetooth is not working -- I can't toggle Bluetooth on like the instructions said. I go to Acer site, Qualcomm site, etc., for a solution; I find lots of questions but no definitive answers. Ultimately, after system restore back
to the out of the box point (dumping the two downloads, since I don't know if that's what killed the Bluetooth or whether it never was working), then another restore to get the downloads back because the first restore didn't fix bluetooth, ULTIMATELY I realized
the INSTALLER didn't automatically install. Now, it's called WiFi installation, and I didn't want to touch it because my WiFi was working fine, just not the Bluetooth. But on the Qualcomm site I saw that it's a suite, and I took a chance on running the
installer, since nothing else had worked. And that finally did fix the Bluetooth.
After downloading the Qualcomm items as above, here's what I had to do:
on my Acer S7 go to SETTINGS > Control Panel > Programs > Uninstall
you'll see the list of all your programs
scroll down to the Qualcomm Atheros WiFi driver installation and select it (you are NOT uninstalling it, in spite of the fact that you're in the "uninstall" window...your options are to change, repair or uninstall)
once you click that installation item in the list, select change/install, and follow the install Wizard instructions
RESTART YOUR COMPUTER!! (this was the magic last step, and nowhere did the installer say to do this!)
Ok, good luck, I hope this helps you.