One of the worst offenders is win10 updates, mine sits forever 5%  6%  9%,  then 5 mins later it magically changed from say 6% to 39%, and i wait<br><br>I tried to explain it to a friend who is a mechanic, the example is you have to change a flat tyre<br><br>1 wheel and 5 lug nuts<br><br>1 - 50% put the wheel on the hub<br>50-60%  Lug nut #1<br>60-70%  Lug nut #2<br>70-80%  Lug nut #3<br>80-90%  Lug nut #4<br>90-100%  Lug nut #5<br><br>or is it 6 processes 1 wheel + 5 lug nuts so 100/6= so each step is 16.67%<br><br>Do you go buy time, the wheel is like 20 second and each lug nut 5 second on the rattle gun<br><br>They are all correct from a certain point of view<br><br>Regards<br>George