I had to reinstall Windows. There was a hard drive with storage on it, that should have been left alone, but during the reinstall process the partition was accidentally deleted. So the partition was deleted but the disk was not formatted. Now when I try to access it it says that it's inaccessible. EaseUS data recovery tool can see the contents, but the thing is it's the biggest disk the computer has so I'd prefer to repair it than salvage the data and copy it to another drive since it's the biggest.