Typically those in the IT field will not immediately download an OS upgrade (or major update) until there is assurance all the bugs and problems have been worked out; HOWEVER, if you are one of the brave you can NOW download the Windows 10 Creators Update. As a general rule of thumb, backup your personal files.
CLICK HERE and you will be taken to Microsoft’s site where you can download the Update Assistant.
Once you download and run the Update Assistant, the update process will begin with the update files being downloaded to your PC (which will take some time). While the update files are being downloaded you can continue doing what you were doing on your PC; however, when performing updates (or upgrades) such as this, I typically do not do anything. Once the update files have been downloaded, the actual update process will automatically begin (which will also take some considerable time, so be patient).
Source: Microsoft – Download Windows 10