Many time windows show the message when trying to delete/rename or move some file/folde, mainly when you are trying to manually remove any infected file/folder.
Meaning of this error is some program may using this file/folder so you have to close that program first to complete the action. In windows 7 some times error message also containing the detail of that program but in most case windows can’t detect the program which are using that file/folder.
So i have an excellent trick for kick such error, just follow these following steps.
1. Download and install the latest version of an application unlocker assistant from filehippo.
2. Right click on the file that you want to delete, and click on unlocker.
>>> click on send to and click on unlocker.
3. Unlocker tools will open with the information of all program that are using the file.
4. Here you have all options, choose that you want to do either delete/rename or move.
just click on the option that you want to do and confirm on ask.