Beginning / Know it / Computer

Delete file forever

1. Shift+Delete - file will be deleted not in recycle bin.

2. In fact the file was not deleted, was deleted it's address in Registry. And there are special software which may restore it easily

3. The only way to make restoration impossible - to write something over it.

4. You may use special software for it. I use CCleaner.
   CCleaner/Tools/Drive Wiper - choose the disc and wipe Free Space Only.