After two years of loyal service my 1.5Tb Seagate Barracuda hard drive has decided to call it quits. At first it started giving some read/write problems that were slowing down my computer like never before. It would crash often and start showing error messages pertaining to the hard drive. Then, after a few angry restarts and shot downs the computer would not even boot anymore, my hard drive system files basically got corrupted.
How in the world was I supposed to fix the HDD if I couldn't even boot? I became quite frustrated but only for a second. I did some research and eventually found a way to correct the problem using Window's Check Disk utility, and now I'd like to share my wisdom with you.
Keep in mind this tutorial is only guarantied to work for those running Windows XP and have the same problems I described above. Otherwise use it at your own risk, after all it might still work with other versions of Windows it all depends of course on how badly corrupted your drive is.
The first issue was that I couldn't even boot, so there was no way to even run the drive through Check Disk. To get around this you need to get a hold on a hard drive enclosure and another computer running the same operating system. An enclosure will allow you to run your corrupted hard drive as an external drive in another computer. You can always get another computer, if you don't have it you can borrow one from a friend, use the one at work or college, etc. After you remove your hard drive from the computer hook it up to the enclosure using the instructions that came with it. After you have it set up plug it to a USB port in your secondary computer and see if you can access your drive's data from there. It is likely that you won't be able to do so. In my case it would not even open (error message) and it would show some bogus information when I tried to access its properties.
Use a drive enclosure like this one to be able to access data and correct problems with your hard drive connecting it via USB cable to a nother computer.
You may get one at your local computer store; this particular one costs around $24.00
Now we know the drive is completely messed up and it's time to run Check Disk. To run Check Disk go to Start, then Run, then type "chkdsk /f volume:" where 'volume' refers to the letter assigned to the drive by the computer; this could be D:, E:, F: and so on.

Top: This is the command that you should type on Run to get Check Disk going.
Bottom: This is the screenthat you'll see during the error correction process.
Check Disk will verify and correct errors and bad segments in the disk. This may take quite some time so be prepared to wait, this would be the ideal time make yourself a sandwich or play some video games if you don't want to stare at the DOS console working on your drive.
Once Check Disk has finished its process (it does this in three stages) you'll probably notice your hard drive come to life when Windows starts searching for files and actually finds them. This is when you go back to My Computer and try it out; you should be able to open it a browse all its data and access its properties.
Congratulations! you've successfully brought back to life a corrupted hard drive and you may dismount it from the enclosure. Make sure to safely remove it from your secondary computer before you unplug the USB cable, being too cowboy here may cause another set of problems to the drive that you just fixed. Once it's disconnected and out of the enclosure you may install it back in your main computer, make sure everything is properly connected and secured. Now it's time to test it, fire up your computer and vuala! Windows should start like if nothing has ever happened here. I recommend defragging your drive and backup everything as soon as possible in case it happens again in the future. Also, consider researching on the brand and model of your hard drive, make sure it has a good reputation among techs and that there are no recalls reported, you never know when you may have a drive that is a piece of crap that may play dirty with you again.
That's all there is to it, hope you find this useful and entertaining.