That might be an idea …
The client has two partitions, labelled C: and E:
C: is the system partition that is currently beeing imaged. Windows 10 reports 100 GB free space while the total volume is 464 GB. So I guess, there should be enough space.
E: is a data partition, that was also set to be imaged. On this partition Windows reports 20 GB free space, total volume 465 GB. So there might be an issue. However, this parition is currently not beeing imaged!
Just to be sure, I changed the settings, so that this partition will not be imaged.
Update: The errors keep coming, both in the status tab and the log from the activity tab.
However, the log in the log tab shows only two errors (from yesterday, right after starting the UrBackup Server):
Errors
28.03.18 15:16
Backing up System Reserved (SYSVOL) partition failed. Image backup failed
Errors
28.03.18 15:16
Backup failed