Hello, after installing Parallels 11 with El Capitan in OSX, install two virtual machines, Windows 7 and Windows 10, both worked properly until today to try to start either error message will Id:5000 me "it has failed as he wrote in the sound default device, I have returned to restore the default sound but still receive the error values. I have uninstalled and reinstalled Parallels and is happening, can anyone help ?? because it is impossible to operate the sound. Thanks