Ahh...Probably should've mentioned that earlier!
Issues with usb 3.0 are usually solved by updating
your cIOS and updating your loader to the latest version!
You may also have some bloatware that will need to be deleted.
Almost all brands will have deletion instructions on their website
or the partition can be deleted through disc manager.
What is the best option, should i buy a new hdd or do it custom ect ect ect?
Try my suggestion first, if that doesn't work then you can buy a new HDD
if you wish! But make sure you check the compatibility list first!