Thanks for the replies,
I have had a problem with my computer the past couple of days so sorry for the delay in respondig.
Ballscrewbob, since a windows 10 update in April I have not been able to use the Start menu, I get a
"Critical Erro" if I left click the Start icon.
If I right click I can goto Control Panel\Programs\Programs and Features but I do not get the Change option on any selection only Delete.
If Run Arduino as Administrator I still get the error!!
Thanks facchinm, I do not have a /1.0.7/ folder I have a /1.0.5/ folder!!
I have uninstalled and re-installed Arduino a few times so I probable have not loaded the 1.0.7 core.
I will do that and try your mod.
Ralph