|If you have a legitimate copy of win7 / win 8.x installed and drivers are MS digitally signed, the system will be qualified to upgrade to win10. During one of the last "patch-Tuesday" a check will run and add a windows icon on your taskbar if qualified. |
My main system shows "test mode" in the lower right corner meaning some driver(s) are not MS signed. The win10 icon is missing. But that's ok. I don't want to upgrade this system to win10 yet.
The other systems all have win10 icon on the taskbar, ready for upgrade, although I'm still not sure I will let that happen.