Recover photos and videos?

2 years ago I deleted some photos from my Acer laptop. The police have been taking my laptop for a few days and looking for it. The laptop has been coded. My question is: can the police unlock the laptop? And if so, can you restore the deleted photo?

The less has happened on the disk since the deletion, the better it can be restored.

The file is not deleted, only the first character of the name in the table of contents and the space in which the data is located is marked as empty.

If something is now written to this space, the data will be overwritten. Until then, they are still "there" and easy to restore.

Thank you. Another quick question: "If something is written to this space, the data will be overwritten". What does it mean exactly? Lg

I think a lot can be reconstructed with today's technology. A colleague of mine once said that data can be reconstructed which has been overwritten with new data up to 8 times. - And since with such large hard disks you have no idea how often an already deleted part has been overwritten… Pretty much everything can be brought back somehow o.o

The US Department of Defense considers it safe to overwrite data 3 times.

Well, I don't really know who to believe in things like that. - Maybe they say something like that, so that everyone feels safe when they are overwritten 3 times… While the data can actually still be retrieved if it has been overwritten up to 8 times.

Somehow, however, I prefer to believe my colleague, who gives me the impression that he really seems to have a clue. - But I myself belong to those people who are lost when they accidentally delete a file… Because I have no idea how to get data back at all.

OK.

I will continue to believe those people who have a vital interest in their data being really securely deleted.

Especially since you have to say that disks with really, really sensitive data are simply shredded.

Yes, somehow that says a lot about safety when records are even shredded. Probably more can really be reconstructed than we would like. At some point the effort will just become disproportionate?

I even got the idea, when disposing of an old computer, to unscrew the case, look for the hard drive and hit it with a hammer ^^ '

The hard disk has a hard magnetic layer (i.e. It can be permanently magnetized). This is done by the read / write head, when it is in the right place, creating a magnetic field as an electromagnet.

The elementary magnets, at this point on the plate, align and form a mini magnet. This is "destroyed" by heat, shock, age or renewed application of a magnetic field, this time with a different direction. This is exactly what happens when you overwrite.

To put it simply: bar magnets with a hole in the middle are threaded onto a rod. When writing, each individual magnet is rotated so that the sequence of north and south poles results in a code.

When overwriting, they are rotated so that a new code results.