When I try to update Bridge CC 2015 I get a failure message saying that another instance of the installer is running.

There is no second instance of the installer running that I can see. I have done a reboot then tried to update the software again but with the same message. I then tried to uninstall Bridge CC but that failed saying that there was another instance of the unintaller running.

Bridge itself seems to run fine, I just can't update it. The version on my PC is 6.1.0.116 x64.

Thanks