Add disk performance to Task Manager in Windows Server 2012 R2

On Windows 8 and 10 you can see your disks in the Task Manager Performance tab, I had always missed this feature on Server.

But... It seems it is there and just needs enabling, run the command below in CMD and restart Task Manager to see this very useful addition to your toolkit.

To enable disk performance counters.

diskperf -y

To disable disk performance counters.
diskperf -n