Windows Server Backup Commands
Solution 1: Delete old backups manually using wbadmin command
- Right click on the Start icon and select Command Prompt (Admin) from the menu.
- To get versions:
wbadmin get versions
- To delete the oldest backup enter: wbadmin delete backup -deleteoldest
- Type wbadmin delete systemstatebackup -keepVersions:3 and press Enter to delete all system state backups, except the three most recent.