The Windows Recycle Bin provides a safeguard against accidental deletions. But its size is limited, so unless you recover an accidentally-deleted file soon, you may be out of luck.
You can change the size of the recycle bin for any drive, however. Just right the recycle bin icon on the desktop. Make sure that the 'configure each drive independently' option is on.
Then move to the to the tab for the drive that you want to configure and specify the size as the percentage of the drives space.