Recycle bin is an icon on the Windows desktop that represents a directory where deleted files are temporarily stored. This enables you to retrieve files that you may have accidentally deleted. From time to time, you'll want to purge the recycle bin to free up space on your hard disk. You can also configure Windows so that it doesn't use the recycle bin at all, but then you won't be able to retrieve accidentally deleted files.
Items in the Recycle Bin remain there until you decide to permanently delete them from your computer. These items still take up hard disk space and can be undeleted or restored back to their original location. When it fills up, Windows automatically cleans out enough space in the Recycle Bin to accommodate the most recently deleted files and folders.
The recycle bin is modeled after the Macintosh trash can, which has been part of the Mac GUI since its inception.
In the Microsoft Windows operating systems, the Recycle Bin is a holding area for files and folders that are held before final deletion from a storage device.
General
Microsoft introduced the Recycle Bin in the Windows 95 operating system. The Recycle Bin keeps some files that have been deleted, whether accidentally or intentionally. Whether a deleted file is put into the Recycle Bin depends on how it is deleted; typically only files deleted via the Explorer graphical interface (but not necessarily other Windows graphical interfaces such as file selection dialogs) will be put into the Recycle Bin; files deleted via the Command Prompt, or via operating system APIs are not. Users can review the contents of the Recycle Bin before deleting the items permanently. In previous Windows operating systems and in MS-DOS, undeletion was the only way to recover accidentally deleted files. The Recycle Bin holds data that not only lists deleted files, but also the date, time and the path of those files. The Recycle Bin is opened like an ordinary Windows Explorer