Disk Utility Disk Error

When running disk utility this past weekend I came across the following errors:
Invalid Volume Free Block Count
(It should be 146352250 instead of 146352248)
The Volume Macintosh HD was found to be corrupt and needs to be repaired.
This hard drive is relatively new … the original 500 Gig drive I had in it crashed in June (1 year and 8 months old) so I went to Tekserve and replaced it with a 750 gig drive - effectively, the drive inside my machine is only 5 months old.
Any suggestions?

alessandroab wrote:
Any suggestions?
Yes, you can backup, Zero erase the drive and reinstall OS X, update, programs and finally files.
Zeroing maps off failing sectors, making the data on them more reliable. One should try to do this, or the Erase Free Space option, before any major data writes or formats on a drive to decrease the chances of coming across a newly failed sector.
It also checks the drive as it writes across the entire drive, if there is a major issue, then better to learn about it upfront while the warranty and purchase is still fresh so you can get it exchanged, rather than later on when you decide to address the last portion of the drive and find out.
Drives always ship out with a few bad sectors, some fail along the way. The drive likely works just file it's perhaps the directory info on those bad sectors failed and why you got the problem.
I've only had one hard drive fail in 28 years of using Mac's. One drive! It just died one morning and failed to boot.
All the other minor issues were resolved with a Zero erase, so now I do it upon all new hard drives and before a major write occurs.
You should learn how to clone your boot drive as well, it comes in great asistance, you can boot off the external clone, zero and reverse clone in a few hours, nealry effortlessly.
https://discussions.apple.com/message/16276201#16276201

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