you need to be parcific or I going to offload a lot of questions.....
1. where is the problem coming from? pc or ps4
2. are you having trouble extract from where? pc or ps4
3. Is Winrar?
4. What does the error say on winrar when extracting?
5. is your hard drive apart of your computer or external?
Your drive maybe....... formate issues......maybe...i don't know your issues i very vague