Ked pouzivas WinXP, tak rozdiel medzi "Full format a Quick format" je len to, ze pri Full sa vykonava "zisťovanie chybných sektorov na disku", riziko obnovenia dat je rovnake.

http://support.microsoft.com/kb/302686

Pri OS Windows Vista and Windows 7 sa prepisuju udaje nulami ("0").

The format command behavior has changed in Windows Vista and Windows 7. By default, the format command writes zeros to the whole disk when a full format is performed. In Windows XP and in earlier versions of the Windows operating system, the format command does not write zeros to the whole disk when a full format is performed.