I've watch my update history in the control panel all the time and I've never seen any update called Update 1. I have noticed something peculiar though. It looks like every 4 or 5 days or so it installs System Firmware Update - 2/11/2014 again. Wish I knew what that was all about.
I also run the Bose Soundlink via Bluetooth. The same one you mentioned. Fantastic little speakers. I also have the bigger one. I have never had a problem listening to music over the Internet using the Bose Soundlink.
There was a thread here recently about the repeating update issue. I had that going on too. Go to Windows Update/Troubleshoot problems... It refers to an MS site that downloads an app which will identify and probably fix the problem. Something about deleting the Windows update store, which in theory eliminates the problem.
I did this several days ago and so far so good. However since it had been an irregularly recurring event, I can't say for sure it's been eradicated. Time will tell.