how to delete undeleted files?

several times whenever some one try to delete files or folder they are not able to delete files or folder due an error massage 'you can not delete this file it is used by another program or another user'. To avoid this massage and delete unnecessary files you can follow just very simple steps. just like

1.download delete doctor  software from this link  and install it in your computer.

2.run delete doctor software and browse files or folder which one you want delete. like this way.

3.And finally Delete file via dos short name just like