Computer Frage PC?
Ich habe gerade meinen PC zurücksetzt. Aber meine HDD wurde nicht gelöscht also bin ich in die Datenträgerverwaltung gegangen und habe das Volumen gelöscht von der hdd und neu hinzugefügt , daraufhin habe ich mich gewundert das in 1sec 900 GB gelöscht wurden. Also habe ich nach gelesen und dort stand das die datein noch da sind aber unschichtbar für system sind und mit der zeit von neuen datein überschrieben werden. Wie kann ich diese unschichtbaren datein löschen ? Damit die hdd besser läuft und schneller/effektiver ?
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It doesn’t matter what data is there before when the disk space is free for the file system, then it writes new data to this location if necessary.
Whether there are only zeros, private keys to bitcoin wallets or the bee movie script does not differ in practice.
Overwriting the files would only be important if nobody else can recover the data.
You can imagine hard drives like a book. At the front is the table of contents, in the main part are the data. If you store a file, the computer searches for a free space in the table of contents, notes where the file is and stores it there. When deleting a partition or a “fast formatting” this table of contents is completely deleted. So the computer doesn’t see the data as you already found out. If you now save a new file after such a formatting/solving, the computer will look back to the now empty content directory and give the command to save this file instead of XY. That’s a file at this point, the computer doesn’t know.
If you were to restore the disk, you would take a program that scans the disk for the data and generates a new directory of contents.
You could “delete” all data now, but that would not make any difference. For the first time, the HDD always runs the same, whether completely full, fresh from the work or completely without a table of contents. The standard formatting to remove data from hard disks more or less securely overwrite even simply the entire disk with random value so that the original file is no longer recognizable