charlay :
I have an hdd 500gb that was running good and speed was too much better but from a time my hdd making a nosing like ( ghrrrrrrrrrrrrrr ghrrrr ghrrrrrrrrrrrrrr ) now what should I do
First and foremost: Back up all your data (pics, music, documents, game saves, app installers) if you can still access the data. Don't worry too much about the OS unless its the installer. It sounds as if the HDD is dying and you might not have much time.
After backing up the hard drive, Use something like HDDScan or some other utility that can give a picture of the condition. (SMART reports or any other reports) Post a screenshot here, and we should be able to give you a better idea.
In the States, you can grab a 1TB model for around $50.00 USD. If your computer still serves you well, that might be a viable option, just replacing the drive, reinstalling your apps and moving your data back onto the new drive. If your computer isn't serving you well, we can help there too. We just need to know what Nation you'll be purchasing from, and your budget.