How to disable the wifi on boot? I'm using network-manager to manage the wifi connection and when I disable this, setting is temporary to the current session. Exists therefore a method to make persistent settings for network-manager? thanks
It sounds like you want to right click on the network manager applet and select
If on the other hand you want to prevent your computer from automatically joining networks, then you must go into the network editing and either remove and uncheck the use automatically option for each network.
If you want to save power, then please use the advice in the guide mentioned by Mussnoon above, shutting off with rfkill will be most effective: