Windows 10 install

So i have some windows 10 eligible systems

I got the update where the pop up asks if i want to receive notice when available however here doesn't seem to be a set time period when i would get the download. It notes it can be days or weeks...

Is there an alternative way to get the iso and install it myself? If this can be done how would it install the windows 10 license? Would i need to input my windows 7/8 key or would one be provided?

I have yet to even get the iso download from Microsoft within my operating system and unsure how long it would take to do so. I am hoping to do it faster than waiting

 

https://www.microsoft.com/en-us/software-download/windows10

 

You could also use the downloads from Major Geeks