No Space left, but there is plenty of space

Server
12

  1. The space needed by urbackup should is the shadow copy one.
    Typically, it’s configured by the setting that you access from the drive letter, but maybe on windows 10 you can t do that , and the setting is only availlable in server versions.
    .
    But as i understand it, the recovery space use the same type of mechanism and disk space that the shadow copy space.
    I am not expert enought to be 100% sureof that and it’s kinda hard for me to double check that on windows 10, i use mostly linux servers/clients, and windows servers.

  2. Yes, urbackup need some of that place, because thats how snapshots works.
    All the file modifications made during the backups are written to this space.
    Then when the backup is finished this space should be freed (kinda hard to explain).