Highly recommend this software (MiniTool Portable Partition Magic); especially, the portable version to manage disks and partitions on your Windows PC. Typically, this type of software is something that most people do not need on a regular basis; thus, the reason I recommend the portable version. Simply download, unzip and run; when you need it.
As an example, I recently used this software to delete a partition and to extend the system partition to capture the space that was being used to store a Windows factory restore on an older HP laptop (that really no longer needed the restore files) that is now running Windows 10. In the end I gained 10GB of space and the computer runs more efficiently.
Free download portable partition software – MiniTool portable partition magic to manage disks and partitions on Windows PC.