![Acronis Cyber Protect: Backup fails if [Disk 0] is selected for backup using policy rules | Knowledge Base Acronis Cyber Protect: Backup fails if [Disk 0] is selected for backup using policy rules | Knowledge Base](https://kb.acronis.com/system/files/content/2020/12/67870/67870_02.png)
Acronis Cyber Protect: Backup fails if [Disk 0] is selected for backup using policy rules | Knowledge Base
![Acronis True Image Home 2012: "Acronis failed to lock the disk" Error Message during Image Restore in WinPE | Knowledge Base Acronis True Image Home 2012: "Acronis failed to lock the disk" Error Message during Image Restore in WinPE | Knowledge Base](https://kb.acronis.com/system/files/content/2011/11/26823/winpe_restore_fail_to_lock.png)
Acronis True Image Home 2012: "Acronis failed to lock the disk" Error Message during Image Restore in WinPE | Knowledge Base
![Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed" Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed"](https://kb.acronis.com/system/files/content/2017/10/59792/fes_request_failed.jpg)
Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed"
![Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed" Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed"](https://kb.acronis.com/system/files/content/2017/05/59792/picture1.png)
Acronis True Image: backup to Acronis Cloud fails with "Remote server returned error ...", "Write error", "Error occurred while writing the file", "Failed to lock the file" or "FES request failed"
![Acronis Cyber Protect Cloud, Acronis Cyber Backup: recovery of disks or volumes fails with "Resize error" | Knowledge Base Acronis Cyber Protect Cloud, Acronis Cyber Backup: recovery of disks or volumes fails with "Resize error" | Knowledge Base](https://kb.acronis.com/system/files/content/2017/01/59416/59416-01.png)