They will require a little work from the person who is performing them but should be easy enough to handle. Even a handful of these techniques will improve your credit score.
These reports will indicate how much you owe, your payment history, your types of credit, the number of accounts you possess, and how long you've been using credit.
First of all, you can contact the credit reporting bureau directly to talk about the errors. You will need some evidence that these errors are real to get them removed from your account.