Thanks! Had the same exact problem that annoyed the shit out of me!
Turning off the bell in default Putty settings is the first thing I do on a new install.
Turning off the bell in default Putty settings is the first thing I do on a new install.
To disable beep of the bash you need to uncomment/add set bell-style none in your /etc/inputrc file
To disable beep of programs like vim (I've tested only with that) you need to create - if it's not already there - a .bash_profile and add setterm -blength 0
http://stackoverflow.com/a/36726662