Nowadays, so many important things are kept on your computer. Photos, videos, correspondence and more are stored only in electronic form, waiting for something to go wrong so they can disappear forever.
Even the most experienced computer users sometimes press the wrong button, and lose data that was really important.
The best strategy to avoid the loss of valuable memories and other data is to back up regularly, but not everyone has a foolproof backup strategy. (By the way, we can help with this, and back up your data in case of disaster!) There are also times when a backup strategy wouldn’t help, such as an SD card breaking as you remove it from your camera.
In a large number of cases, this data has not actually gone, it’s just hidden from you and can be recovered as long as it hasn’t been overwritten. That’s why you should stop using the device immediately, and seek help.