It is a virus because

  1. It was not there 4 days ago and taskmanager works after the pc boots

  2. It attacks after a considerable amount of time

  3. All the above functionalities work at the time of boot but not after the boot :slight_smile:

As u suggested i did run the avast boot time scanner n detected a trojen in my exporer.exe and untill now it has not affected yet . So i am hoping it was that trogen but i just wanted to know the name to get more information abt it

Well Thanks for the advice

nitish