It say's there isn't enough space, when there is, and mentions something about ps2 memory cards. Do i have to run it in a compatibility mode? I'm using windows 10.

For the record, i fixed it. After a google search I found out it doesn't like being installed onto hard drives bigger than 2tb so installed it onto my 1tb SSD and its working now.

Thank you so much for this info,I can finally enjoy my game fully now.