It’s more easy to install “ Primavera P6 8.4” than “ Primavera P6 8.3 or 8.2”. The reason for this is because sqlite database can be used in Primavera P6 v8.4 which is much simpler to setup during the installation process. So you have to buy or find it yourself or request from your company to buy Primavera P6 v8.4 .
If you want to try it so that you can learn it now, you can google search colon site specific search operator to find Primavera P6 8.4. “site:www.4shared.com Primavera P6”. But once you landed a job which will require you to use Primavera P6, you have to make sure that your company buy a license for your copy.
WARNING: Be very very careful in downloading any kind software from the internet especially if you are using your company computer, all your important files may become a victim of a ransom-ware cerber kind of virus if you are not downloading carefully.
Then find and select Primavera P6 version v8.4 search result which may lead to a good download link. Make sure to check if it is a trustworthy file and proceed to download at your own risk. You might download a fake file which may contain malware so you have to be careful in selecting a trustworthy Primavera P6 file to download.
After downloading, proceed to installation process same as any other usual windows application. Just be aware of the step by step pop-ups that appear and just remember your username and password that you type during the database setup pop-up window. You will use it everytime to login to Primavera P6.