Answer:
Honestly there could be a number of reasons
Explanation:
could be that you have a virus.
could be unfinished tasks
there's really lot of reasons this could be happening.
I suggest if its your browser task manager to reset your browser (via browser settings)
If its the system task manager, i suggest trying to restart the computer and go from there.
depending on the root of your problem, it may work, it may not.
Hope this helps :P
