I disabled updates on my 7 machine because I don’t know which ones might be the 10 upgrade.
they don’t force it any longer i beleive-
3-22
Microsoft forcing Windows 7 and 8.1 users to install Windows 10
http://www.freerepublic.com/focus/f-chat/3536970/posts
3-23
Microsoft will kill some Windows 7 and 8.1 support in April (Apr 10 Patch Tuesday)
http://www.freerepublic.com/focus/f-chat/3537563/posts