windows - How to extend hard disk partition backwards (to the left) without third-party tools?

I'm trying to extend the D: partition using unallocated 30.91 GB space at its left side.

Another thread states it can't be done using Disk Management's UI and it suggests using 3rd-party tools.

However, how can we do this natively (e.g. diskpart) without installing/downloading additional software?

Answer

Yes that is possible. Copy all the data from your D drive to a different disk/partition, delete the volume of D and then re-create it. Then move your data back on the new D drive.

That is the only way without 3rd party tools.