If you are concerned by the HealthStatus:Caution
warning, I have seen that on a lot of drives but I usually never have any immediate problems with them. I'm not sure what triggers it but in this case it looks like you may have bad sectors. The drive may last for years or it may die ten minutes from now. That is true no matter what though, a brand new drive could fail with no warning so it's important to always keep your personal files backed up. Laptop drives in particular tend to fail more often since they get bumped around and jostled so much and laptops tend to run hotter.
I would run a disk diagnostic on the drive, the type you boot up from a CD or floppy and it scans for bad sectors. You could download Ultimate Boot CD for example, or download a utility from the manufacturer of your drive. If any bad sectors are found it would be wise to replace it.http://www.ultimatebootcd.com/