Thank you alas, I must have spent 2 hours on this today. I deleted the volume and no go, then for the heck of it, I used a program that formats drives that are over 32gb in fat32, then deleted the volume again, and it worked, the NVR was finally able to read the disk with the correct free space. I clicked format in the NVR and it was back to square one, beeping alarm for HDD error and got status "not exist". I tried renewing the MBR, and no go.
After it comes out the NVR its in a none initialized state in windows and this option is greyed out when right clicking in disc management.
Tried the clean command in cmd, diskpart, and once again it worked in the NVR but after a minute the beeping sound is back.
My next step tomorrow is to try to use the checkdisk command and repair.
Is there a way to turn off the disk error alarm n the NVR with 3.3.4. Couldnt find it.