Extend volume software

In disk manager how is the drive laid out?

This link discuses moving the bcd :
https://social.technet.microsoft.com/Forums/windows/en-US/a03892ba-16a7-4436-b679-7ed1a365bf20/how-to-move-bcd-to-a-different-disk?forum=w7itproinstall

Acronis Disk Director is the most robust utility I know of:

https://www.acronis.com/en-us/personal/disk-manager/

Have used it many times with success.

Sounds great.  I will give it a try.

FYI, looks like the link I provided is for the "personal" version which will not run on server (its desktop OS only). Make sure you get the server version.

regards

Okay.  Thanks for the clarification

Maybe you can do it with inbuilt tools of Windows Disk Management. What is the current situation with your partitions? Can you provide us a screenshot of Windows Disk Management?

I believe i have exhausted the capabilities of the In-built tools.  The previous tech set up the system this way (going by memory and off-site)  Recovery Drive 30mb-OS 40GB-DataDrive 920GB.  I did shrink both the recovery and the Data drive, but the space appears before the OS, not directly behind.  The option to extend into the space is not there.

If your goal is to increase C: drive then the option to do this with Windows tools would be - copy out data from D: drive, delete D: drive. Then extend C: drive as much as you want - recreate D: drive and copy the data back. No extra tool is needed in this case.
Or you use PartedMagic ISO to boot the server from and perform resize which requires server downtimes as well.

There is 400GB of Data, and how would that affect links to the shared drive?  The previous tech has also installed a virtual server and utilizes this drive.  Seems too time consumptive and a risk too??

I think you make a very valid point.  I have only used the software option once and that was many years ago.  It was successful, and worked very well.  I used Acronis in that case.  ....But if I do have issues....    I need to go the safest route.

Complete answer was given.