A suspicious file activates it self in every 2 or 3 minutes. it can not be deleted. is it a virus? how to remove this. this file exists in every drive partition and pen drive. please help!
Welcome to the forums, ManojChouhan. 
We need more information to be able to help.
Please download HijackThis from the link below, run the program but do not make any fixes, and then post the log results using the “copy & paste” method. It will probably take more than one post to be able to get the complete log posted. OR, you can post it as an attachment to your post by clicking on “Additional Options…” below left of the posting box. Someone will review your log and then offer help.
http://filehippo.com/download_hijackthis/