What she is saying is that when she goes to shut down the system,it shuts down fine. but will not start again unless the unit is unplugged from power,then is plugged back in,and then the power switch is hit. If the system is shut down and the power is not removed then re- connected it will not restart.. Not that hard to understand.. unless you are brain damaged. Try having someone swap the power supply out with a known working one. I had a system that did that until i changed out the power supply. It's usually caused by bad capacitors in it. Another thing that can cause it is bad caps on the motherboard and sometimes tho rarely an improperly seated ram chip.
DURTA DURR, THINGS DONT NEED POWER, THEY JUST SUMHOW WORK DURTA DURR UNPLUG BATTERIES FROM A WIRELESS MOUSE DURTA DURR DONT WORRY IT WILL WORK DURTA DURR
It's shutting down because you're removing the power cable. I wouldn't really do that when your computer is on... It's not good for the motherboard or anything, for that matter. It restarts again basically because it's still being told it's on, so it reboots when it's plugged back in.
u question is confusing, need more details, post again