1) Open command prompt,(Ensure u r with in the directory c:\windows \System32).

2) Type notepad c:\FILETOCHANGE.txt:YourName then press enter. Keeping in mind that FILETOCHANGE.txt is the text file you are going to create whereas YourName is the alternate stream name.

3) A new message wil appear.  It will say “Cannot find the C:\FILETOCHANGE.txt:YourName.txt file”. Do you want to create a new file?”, click OK button to proceed create the new file.

4) Now a notepad will pop open.  Now type any data you want hidden.  Save the file and the data is now hidden.

5). Now Explore in to c:\ directory  and open the file you saved !! OOP you cant  find the data  you typed.

6). You can get the dat only by going back to notepad and type as notepad c:\FILETOCHANGE.txt:YourName