Thank you guys for the information.
Another question:
Is windows defender alone capable of handling malwares like the $Recycle.Bin?
Im not quite sure you have understood above posts by Rob and Dinesh.. Generally malware can be detected by defender in windows 8 and some malware uses $Recycle.Bin as a part of malware hiding component or so.
$Recycle.Bin itself is not a virus... and if you want, any folder and its content can be made shown as a recycle bin using a desktop.ini file..
Normally within this desktop.ini u can see.
[.ShellClassInfo]
CLSID={645FF040-5081-101B-9F08-00AA002F954E}
LocalizedResourceName=@%SystemRoot%\system32\shell32.dll,-8964
check Is $RECYCLE.BIN folder a virus? for more details regarding this desktop.ini