Comment by cautious_int

This is a lose-lose scenario. If you don't trust a closed operating system in the first place, why would you then, after performing these steps, trust the system that it really does what it says it does. The point is that you don't know, and you can never be sure. The solution is to either trust or not, switch or stay, there is no middle path, because any middle path implies some amount of non-trust.