nigelivey :
Check your channels and density of different RF sources
It's the same on any channel i put it on.
As for density , i don't know how to check that exactly.
But i have a temporary fix.Even though i do not know how i did it.
First i disabled Cortana.It seemed to work but after few minutes it returned.
Then i was digging through windows services that were active and killed few of them.
And it stopped.
I turned off the PC, and after switching it back on the same issue is back.
So i think it's something to do with Windows.But i'm not sure what yet.