win 10 and win 7

Hi to all,
i didn't found a similar thread before and about this reason i want to explain my problem.
I've a blank Hard Disk of 320 Gb and at the beginning I've created 2 partitions:
first partition of 250 gb
second partition 70 gb
On the first partition i've installed win 7 and after upgraded to win 10
After this on the second partition i've installed win 7 but i don't have upgraded to the new operative system.
Now I've installed EBCD on each operative system but the dual boot menu doesn't start at the first start.
Immediately win10 starts but when I restart this operative system only now the dual boot menu starts.
Thank you so much


Knows where his towel is.
Staff member