Plan G Not starting.. I am still with this problem. Following on forum comments I have back dated Net 4., updated Plan G to current spec. but still get immediately the dreaded message. The only difference I can see compared with an updated  older Vista system is that the icon placed in the task bar is different....a monitor encompassed by a set square.
Does this give anyone a clue. All ideas or hand holding welcomed. Frustration reigns....Reg Russell  G-TARQ

Thanks  Michael. I have deleted, in sequence..net4.5.1, and Plan -G 3.07.71 closing down after each action. Then loaded net 4.0 via your suggested link, closed down, restarted and loaded G -plan afresh but without success. Still the same Plan - G stopped working message.
It is back to forum scanning and waiting in hope that the new version Plan -G will solve the problem. It does appear to be quite common. Reg

Re 'Plan-G3 has stopped working problems'    I read with considerable interest previous comments that installing,  <.net 4.0>in lieu of the current <.net4.5.1> sometimes clears the problem. Can anyone advise in simple terms how I delete .net4.5 and install .net.4.0.    I would like to go flying again  G-TARQ   thanks.