How to download Windows 10 for free?

[Mercury88]

I read that Windows 10 is a free download. I have a new computer but no operating system yet, how can I download Windows 10 and get it installed? Have I misunderstood and will be required to have an older Windows 7 or Windows 8 install to upgrade from first?

Is there an ISO anywhere? How do I get the CD-Key?

If you could point this new member in the right direction I would be grateful .

 

[Tim Locke]

Two ways to get free.
1. A legal activated install of W7 SP1 or W8.1 and get W10 Home edition via Windows Update
2. A legal install as before and then get into the Insider program. This gets you W10 pro but any given build that Ms sends you only lasts for 6 months and they are often buggy.

On a brand new machine with no OS then you might as well just buy a retail W10 and not worry about it.