We need more information on what drive you are working on, and what you want to achieve. Is this your only hard drive - the one you boot up from? Are you trying to recover your whole system, or at least your Vista Operating System, from a small disaster? Or, is this a second drive used only for data storage?
Now, why do you believe you need to Format or Partition or Test the drive? Those are all useful things to do when they are required, but most of them are likely to destroy any data on the drive. So if there's stuff you need, you will have to plan your troubleshooting and remedial actions carefully. Tell us more about the symptoms of your problem, what's on which disk(s), and what you need to recover or not.