Replacing the drive in its self won't be enough here. You need to install the OS files onto the drive. Think of it this way... A bucket without water won't put out the fire. ;-}
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OK, lets get this drive prepped, To start with you need to have a working Mac system to format the drive. So even though your old hard drive is having problems it might be well enough to work here. If not you'll need to find a friend with a Mac.
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OK, lets get this drive prepped, To start with you need to have a working Mac system to format and install the OS to the drive. So even though your old hard drive is having problems it might be well enough to work here. If not you'll need to find a friend with a Mac.
So with your Mac and the original drive installed we need to connect via a SATA to USB adapter your new drive so both are connected to the system. Now open Disk Utility and format your new drive with a GUID partition map and a Mac OS Extended (Journaled) partition. Once done you'll need to download and run the OS installer from the Apps store to install the OS onto your new drive. At the end of the process the installer will ask you if you want to transfer your user accounts, Apps & data over to the new drive unless you have a backup or don't have anything important this is the best time to copy off your stuff.
Once done shut the system down and swap the drives. Your system should startup without any problems.
If you have a friend with a Mac you could connect your drive to his or if you want you could install the new drive in your system and then by using Target Disk Mode connect your system to your friends Mac so it is seen as if it were a removable drive (that way you don't need the SATA to USB adapter) but you will need either a FireWire or Thunderbolt cable to connect your system to the other (both need the same port type for this to work).
Replacing the drive in its self won't be enough here. You need to install the OS files onto the drive. Think of it this way... A bucket without water won't put out the fire. ;-}
OK, lets get this drive prepped, To start with you need to have a working Mac system to format the drive. So even though your old hard drive is having problems it might be well enough to work here. If not you'll need to find a friend with a Mac.
So with your Mac and the original drive installed we need to connect via a SATA to USB adapter your new drive so both are connected to the system. Now open Disk Utility and format your new drive with a GUID partition map and a Mac OS Extended (Journaled) partition. Once done you'll need to download and run the OS installer from the Apps store to install the OS onto your new drive. At the end of the process the installer will ask you if you want to transfer your user accounts, Apps & data over to the new drive unless you have a backup or don't have anything important this is the best time to copy off your stuff.
Once done shut the system down and swap the drives. Your system should startup without any problems.
If you have a friend with a Mac you could connect your drive to his or if you want you could install the new drive in your system and then by using Target Disk Mode connect your system to your friends Mac so it is seen as if it were a removable drive (that way you don't need the SATA to USB adapter) but you will need either a FireWire or Thunderbolt cable to connect your system to the other (both need the same port type for this to work).