So, I have found myself having to use my phone provide an internet connection for my laptop for the next 2 months. Problem is, the allowance on my phone contract (not UK based), is severely limited and I am worried that I am going to miss disabling auto-update on *something*, and a few GB is just going to go poof before I know it.

So what I would like is for a software (I am guessing a firewall) to actually stop all connection in and out by default, and *only* allow specific programs that I allow to connect online.

Does anyone have any suggestions?