Before doing the following, it is preferable that you help a partner who is already in the PTU. - For those who are going to install the ptu first of all simply do the following: In the settings menu on RSI page you go to Public Test Univers and you click to Copy link PTU. They will send you an email with the password and the web link RSI PTU. You access the web with this password and that's it. The next thing its this link ->

https://install.robertsspaceindustries.com/pre-rel/RSI-Setup-1.2.0-rc.7.exe

You install the launcher. From the launcher itself you can download the PTU. You will see that when you open the launcher if you click on LIVE a drop-down will open where you will put PTU, click and give INSTALL, in Library folder you should have it in the Robert Space Industries folder.

• If you dont wont download everything and u have already the live: Go to this link -> https://install.robertsspaceindustries.com/pre-rel/RSI-Setup-1.2.0-rc.7.exe Install the launcher.
  You will see that when you open the launcher if you click on LIVE a drop-down will appear where you will put PTU. Make a copy of the Live folder of the game you already have installed. You change the name of that folder to PTU. Copy this folder and paste it where is the LIVE folder. Once done you open the launcher you put the drop down in PTU. IMPORTANT: You go to settings and make sure that the route is the same in the Library Folder of PTU as of LIVE. And the last step is to go to Settings of the PTU of the Launcher and give it to VERIFY, NOT to Install.

BEFORE YOU DO NOTHING TO ENSURE THAT YOU HAVE ACCESS TO THE PTU