Where does disk space go when only Hiper-V lives on the disk?

Question

Windows Server

Windows Server 2016 Standard 10.0.14393, Hiper-V Virtual Machines.
The 1TB drive from the Samsung SSD 850 PRO contains only virtual machines from Hiper-V. The volume of all three virtual machines is 122 GB. The volume of all folders and files (hidden too) on the disk also occupy 122 GB. But the total disk space used is 909 GB. Disk space gradually disappears daily until the entire disk is full. After the disk space is automatically freed up, but not in full.

Images

Shadow copies are disabled. Replication is disabled. Checkpoints are disabled.

Answer 1

Here's who ate all the disk space:
cmd command: vssadmin list shadowstorage
Shadow copy storage volume: (X:)\\?\Volume{030474cc-7889-44a6-8f7f-650ef062e164}\
Shadow copy storage used: 745 GB (78 %)
Allocated Shadow Copy Storage: 786 GB (82%)
Maximum Shadow Copy Storage: UNBOUNDED (1801309818%)

Answer 2

After the disk is automatically freed up space

The log for this process indicates that it is being cleaned up.
Explorer only shows files that are available to it. Use programs that can elevate privileges as an administrator. FAR , for example.