As for the update iOS 10 intended for iPhone, iPad and iPod Touch (read: Download and install iOS 10 beta without developer account), some of you asked us how to download and install macOS Sierra (10.12) beta 1 without developer account. As every year, the team of Trackr made a relatively simple tutorial, which you will find below.
First, you need to download macOS Sierra 10.12 beta 1 for free by going to this address, then clicking on the blue button “”. Once the operating system has downloaded (4.7 GB), unzip the file in .zip format, drag the file .app got in the folder / Applications from your Mac and launch it.
All you have to do is follow the on-screen instructions to install the first beta of macOS Sierra 10.12 on your Apple computer. To find out if your Mac is compatible with the update, consult the list of Macs compatible with Sierra. Finally, be aware that it is not advisable to install the OS on your main machine, as it still has many bugs in beta 1.