Hi there Dom Di Stroia,
Most of the major HDD manufacturers have their own cloning software. Just go to the download section of your HDD's maker website and download it.
Of course, there are a lot of third party ones. Check this thread out:
http://www.tomshardware.co.uk/answers/id-1878285/cloning-hard-drive.html
In case you are planning to clone a failing drive to a new one, keep in mind that this process makes exactly the same copy. So, if there was some corrupted data on the old drive(resulted from bad sectors let's say), the same corrupted data will be transferred on the new one. This is why a clean install is always preferable.
Cheers,
D_Know_WD