Computer problem,it is a doubt about recycle bin?

I don't exactly understand your problem(Sorry for that), but as my understanding goes you are unable to delete a file from your recycle bin, if that's right then you should trying the same while logged into safe mode(assuming you are using Windows).That might help. As far as the files in the recycle bin are concerned they are not actually deleted when you empty the recycle bin(They are just deleted form the file system entries but it's contents will still be located at the same place on the hard disk where it is stored as long as it is not overwritten or formatted. visit the link to know more about recovering deleted files in linux

if we delete something click ctrl+a(same time) shift+delete it will completly deleted in system it will not goto recycle bin

yeah,once u delete an item from the recycle bin as well,it totally gets deleted..but if u want to retrieve some useful data,which u have accidently deleted,u can get a software which helps u to retrieve even the deleted data..broadly speaking,the data once entered never gets deleted..the delete option in reality just disables us from viewing those files..but they are always in the computer..its simply that we arent able to view the deleted data!!!

you computer is infected.try running some antivirus software.i dont mean what you already have on your comp.i mean try using using malwarebytes you can download this software it`s free http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?tag=mncol for more help you can visit my profile http://www.crossloop.com/FaisalAhmed

Its still on there in a hidden file. If your trying to cover your butt, I would download ccleaner from file hippp.. Its a really good program that deletes files that most wont delete.