Trick to hide files

1. First archive your files which you want to hide into a jpg file.
2. Select a particular jpg file in which you want to hide files.
3. Open command prompt and follow the steps mentioned below:---

C:\>cd X --- (where 'X' may be any directory)
C:\X>COPY /B abc.jpg + xyz.7z pqr.jpg --- (where '.7z' is a '7zip' extension, also can be '.zip', '.rar', '.tar' etc depends on your compressing tool)

Now to view xyz.7z file open pqr.jpg with WinZip, Winrar, 7zip etc