Which version of 7 do you have?
Some versions won't upgrade at all like Builders Edition. Enterprise Edition requires the IT department of the company your device is licensed with to upgrade you over their corporate server...
If you have 7 RTM that never got Service Pack 1 (SP1) you have to use an ISO to upgrade and can't do it over the internet. See this very detailed help page:
How to: upgrade from previous versions of Windows using Windows 10 - Microsoft Community
Also this page may help:
https://forums.windowscentral.com/e?...token=R1wmI44c
If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See
this link for instructions on how to join Windows Central.