If you have ever tried to delete bunch of files at once you would in almost 50% cases get following error:
This can be really annoying when you work on servers.
Luckily instead of search-and-destroy-process action there is one FREE program that can unlock file for you and delete it or delete it after reboot.
Program is called Unlocker and it was written by Cedrick Collomb, it’s free and you can download it on this page.