Microsoft released, July 29th, the new Windows 10. If you are considering a clean installation you can grab the ISOs using Media Creation Tool for Windows 10.
First of all, download the tool. There is a 64 bits and a 32 bits version. If you are running Windows x64 you should use the 64 bits version while if you are running Windows x86 you can only use 32 bits tool version. Keep in mind that whatever version you download later you have the built-in option to download both Windows 10 editions: 32 bits, 64 bits and you can also create a ISO with both.
How to use?
When you run this tool, if using Windows 7 or later, you will see two options. Upgrade this PC now and you just have to follow the next steps to get Windows 10 on your PC. However, this topic it is all about grabbing ISOs, so select the option Create installation media for another PC.
Next, you can select edition (see note below), language and 32-bit/64-bit/both version and start downloading, easy 🙂
Note: If you are running Windows 7 or 8.x with a genuine licence, be careful choosing which Windows 10 edition you select. Upgrading from 7/8.x gives you 1 year free licence for Windows 10, but just for a certain Windows 10 edition. See the table below to know which one you should download