3 Bluetooth drivers not working after upgrade from Win 8 to 8.1

CB

Affected:

BT Audio Device

Virtual BT Support

Bluetooth LWFLT Device

 

for Aspire AT3-600-UR33

 

Acer Support said I should have updated new drivers before I upgraded the OS on my brand new computer.   I HAD run Windows Update.  Was I supposed to go through every driver on my PC by hand?!!"  They suggested I roll the system back to 8.0, update the drivers, and then go back to 8.1.  Sounds like the nuclear option to me, and from what I read on a related thread, it won't work anyway as their ARE no drivers for 8.1.  I just spent a good amount of time getting the system set up the way I like it and am loathe to wipe it out.

 

If this is a known issue (and I see similar threads here) Acer and Microsoft should be warning their customers.  What are the chances of new drivers coming?

CB

UPDATE:  I was able to fix the problem with the drivers WITHOUT rolling back to Windows 8 as instructed by Acer Support.  The solution was supplied by DimitryNemirovsky:

 

If you have a Win 8.1 Machine with built-in Bluetooth from Qualcomm Atheros Communications, the Bluetooth may no longer work after you've upgraded to 8.1; this happened to me.

 

If you go to Device Manager, there is a Bluetooth section and in it there is a thing called "Bluetooth USB Module."  Actually, the Qualcomm Atheros Communications Bluetooth is built into the Wifi Adaptor, but that does not really matter.

 

Acer (but probably other manufacturers as well) have not updated the drivers for this device to Win 8.1 yet on their sites.  The Atheros website is also useless.

 

I found the Win 8.1 Driver (64 bit) here:  http://drivers.softpedia.com/progDownload/Acer-Aspire-V5-573P-Atheros-Bluetooth-Driver-801305-for-Windows-81-64-bit-Download-306204.html

 

I have an Acer Aspire Desktop, so I can verify that it works for Acer.  Might also work for other PC Manufacturers, but not sure.

 

It's a big download (over 300 mb), but it fixed the issue for me:

 

Download the zip file; extract all

Open "Install CD" folder 

Find "setup" and run it

Restart machine after it's done

 

Good luck!