[microcolonel]

Well, you could start by not installing software that you know exfiltrates these data, like Microsoft Windows, or Adobe Flash...

[solarkraft → microcolonel]

Even in free software, do you audit everything you install? Information security is only as strong as the weakest link.

[microcolonel → solarkraft]

Why not start with software which isn't known to deliberately disseminate information about your computer. Sure, if you move the goalposts all day, you'll never score.