The anniversary update version of Windows 10 (Windows 10 Anniversary Update) has just been officially released.
If you are impatient, you can force her λήψη through your operating system settings from the Update tab. Just go to Settings – Updates & Security – Windows Update, and then click Check for Updates. 
The Windows 10 Anniversary Update will appear under the name 'Feature update to Windows 10, version 1607.'
Then just click update, and your system will start downloading and installing.
Download ISO
If you want to perform an installation from scratch, you can visit the information center and click on "Learn more" to go to the support page where you can download the ISO. Alternatively, just do it click here (although Windows 10 Anniversary Update is not yet showing up.
However, once they appear, be sure to be the first to learn. Of course you can download them directly from the links in the our morning publication.
Note: if you do not know what ISO is best you expect to update from your system settings.
And if all of this sounds complicated, the simplest way is to wait by having automatic updates enabled.
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Update:
You can download ISO from the Micrsoft official page
https://www.microsoft.com/el-gr/software-download/windows10ISO
