CAT Et key generator, why doesnt it work?

[kentuckynet]

hello i have cat et 2010 a, b, c
and 2011 a

i have a key generator that only works if i put it on a windows 7 laptop, then i enter the info and it generates a key, then i go back to my windows 10 laptop where im installing the cat et software and it never works......1068079

Any help would be greatly appreciated

thanks
mack