Part 2/6:
One of the first concepts to grasp when recovering files is how deletion actually functions within operating systems. When you delete a file, the operating system merely removes the link to the file rather than erasing the file itself from the storage device. Picture a computer as having a detailed filing cabinet. When you delete a file, it’s akin to removing the label from a folder — the folder (file) remains in the cabinet (memory), but without the label (link), the computer no longer knows where to find it.
File deletion becomes permanent when new data is saved, overwriting the original files. This typically occurs when the memory card is full and the system must create space for new information. Thus, until overwritten, the deleted files may still be recoverable.