1 C6 Uncorrectable Sector Count HELP

[charlescooper040]

Hi, I recently went and downloaded CrystalDiskInfo and found out that my C: drive (Which is a WD - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive) has a 1 C6 uncorrectable sector count.
Here are the screenshots. I doubt this will be much of an issue but just to be on the safe side I want to be sure.

https://imgur.com/WH4fYKt

I'm just wondering if theres any chance of a HDD failure. Please help.

 

[CountMike]

That means it has some bad sector(s), so bad that data from it can't be moved to spare space. It's not to be trusted for important use. Once it starts doing that chances of it happening more and more are great.
You can also try http://www.majorgeeks.com/files/details/wd_drive_utilities.html and http://www.majorgeeks.com/files/details/western_digital_data_lifeguard_tools.html in case that those are just software errors.
In that case reformatting drive may help.