yesterday suddenly my net speed reduced so I checked in the task manager what was the processes which was consuming all the net speed . then I came to know that it was the service host local system which was consuming my 4.4 mbps of speed. so i stopped every program under the service host local system and when i stopped the background services... under the service host local system tab the 4.4 mbps of data which service host local system was consuming stopped consuming the data.
And I also noticed that when all the time background... service was open the % of disk rose up to 99 or 100%
I think I have to format my pc . is there any alternate method