If you do not know how to or what to..
Then don't even try as the world wide web is dangerous and just looking for people to mislead,
And because of your lack of knowledge,you will most likely turn your PC into a zombie bot and congest the network with heavy trafficking 24/7.making it slow for all other users,support dev,purchase games and contencontent from authorised dealers and only use proper streaming sources eg YouTube.
Bottomline you don't need to download or stream illegally. Support the hardworking citizens
Ps make sure get a antivirus and anti malware and anti spyware asap