This is one of the reasons why I hate PC gaming some times, Console updates you just click the download button and it's done and ready to play and you are away again.

My PC asked me to find 80gb of space again which was stupid, I read that some people said that downloading the windows update for the day fixed the issue for them so I did that and restarted the PC. Went back to the store and clicked the download button and it told me the patch was something like 428meg and it was done in a minute. ( no need to find 80gb space)

https://www.youtube.com/watch?v=8eoUXnk3DxE