I want to remove all history of TOR and DNMs on my laptop, would a factory restore be safe enough? I have tails set up now and would like the laptop to be as clean as possible.
i dont want to throw my laptop in a lake after drilling 5 holes in the hard drive just because ive downloaded tor before
Use a soft cloth, lint-free if possible. Otherwise you might scratch the screen :)
OK seriously, a factory restore would be more than enough unless you're Ross Ulbricht (or the likes of) himself. Are you worried about LE or family/friends/selling the laptop? If it's not LE then just fully un-install TOR and delete the install package you downloaded and you'll be fine.