What should I do if the files deleted by the win7 computer are not in the recycle bin?

Is it not a rare thing to delete the wrong documents in our daily life? But as long as it is not completely removed from the selection, in general, we can find the files deleted by ourselves in the recycle bin. If you repent, only Need to find the file in the recycle bin, then right click, select restore, but recently a friend found a strange phenomenon, the file deleted in the win7 32-bit pure version of the computer is actually not in the recycle bin, how to solve this problem? ?
1. First, let's go back to the desktop of win7 computer, right click on the recycle bin program on the desktop, and select the property option in the pop-up menu.
2. After opening the recycle bin property window, we can see that under "Settings for selected location" below, select "Do not move the file to the recycle bin, delete it immediately after removing the file". This is why the files we deleted are not displayed in the recycle bin, but are deleted directly.

3. Let the options at the re-set to "Custom size", then the maximum value where you can set up their own, try to set bigger, or deleted after a relatively large files still will be deleted without Lost. After the setup is complete, click on OK to save the settings.