|
Data Streams in NTFS allow files to have hidden content that is harder to see.
You can see how much space is used in Windows Explorer, going to properties for a file/folder. The Size field is the main file/folder. The Size On Disk includes the main file as well as any alternate data streams. Create a data stream from command prompt: notepad notes.txt:test To view them in command prompt, use: dir /r Copy a file into a data stream: type picture.jpg > notes.txt:pic1 Notes: Deleting the main file will delete alternate data stream. Copying to a different file system (such as FAT32) will warn you that some properties can't be copied (the alternate data streams). Nirsoft utility "AlternateStreamView" lets you scan for them. https://www.nirsoft.net/utils/alternate_data_streams.html More info: https://www.youtube.com/watch?v=3BWTo87oCwc |