Today I found out that I can easily restore files that I've deleted a year ago. Is there any way to delete files permanently without drilling anything how it was in mr. Robot? Wana be sure that if i will sell or give someone my laptop this person won't be able to restore my delete private keys.
Deeply can clean MSDOS tool called Vitctoria. But probably that's gonna take a long time. In each field of memory you should put 0 value... That's a long process
Or just put hard on microwave for a while. That's gonna destroy data forever
Also if you can do electromagnetic gun that's possible