1.    14 Jun 2017 #1
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit

    Windows 10 backup error code 0x807800C5


    I'm running a Lenovo T450s, Win 10 Home 64-bit. All hardware drivers, operating system, and software on the machine are 100% up to date. I also have a Buffalo LS421DE50E NAS enclosure populated with 2 Toshiba 3 TB hard drives in a RAID1 array which has 838.4 GB in use. The firmware is current.

    This array is used a LOT and is functioning flawlessly with the exception of creating
    backups. I did run a File History backup last evening to the Array and it completed without incident which puzzled me given the behavior below.

    But every time I try and do a System Image Backup from the File History panel OR try to run a Scheduled backup with Backup and Restore (Windows 7), they fail saying:

    "There was a failure in preparing the backup image of one of the volumes in the backup set.
    Details: The mounted backup volume is inaccessible. Please retry the operation."

    Error code: 0x807800C5


    I have tried both File Hist and Backup methods several times with the same results. I can add, delete, modify files in the Array no problem.

    The Array is defined as part of my workgroup.

    The software does know the Array is online as it displays the "Green" icon and shows the used vs total space.

    Any ideas?

    Steve
      My ComputerSystem Spec
  2.    14 Jun 2017 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,002
    Win 10 Pro (1703)

    Windows Backup failed with error 0x807800C5 - Super User

    Hi, possibly see Workaround there. It sounds a similar situation to yours.
      My ComputerSystem Spec
  3.    14 Jun 2017 #3
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit
    Thread Starter

    Quote Originally Posted by dalchina View Post
    Windows Backup failed with error 0x807800C5 - Super User

    Hi, possibly see Workaround there. It sounds a similar situation to yours.
    Thanks! I'll head over there. Didn't see the thread - sorry.
      My ComputerSystem Spec
  4.    14 Jun 2017 #4
    Join Date : Apr 2017
    Posts : 8,710
    windows 10 professional version 1607 build 14393.969 64 bit
      My ComputerSystem Spec
  5.    14 Jun 2017 #5
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit
    Thread Starter

    Popped over there but didn't help. I don't use windows defender. I am the SU of the system. File backup works fine through the same software so it doesn't seem to be a permission issue. The software doesn't recognize my NAS as a hard drive, only as network storage. I've rebooted, TOTALLY cleaned out the target directory and started over, no dice.
      My ComputerSystem Spec
  6.    14 Jun 2017 #6
    Join Date : Apr 2017
    Posts : 8,710
    windows 10 professional version 1607 build 14393.969 64 bit
      My ComputerSystem Spec
  7.    14 Jun 2017 #7
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit
    Thread Starter

    Quote Originally Posted by zbook View Post
    Thank. Totally wiping out the target directory, again.... And one SUQ (Stupid User Question. ) can I run sfc /scannow on a Raid1 array?
      My ComputerSystem Spec
  8.    14 Jun 2017 #8
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit
    Thread Starter

    Quote Originally Posted by zbook View Post
    Thanks, but I kind of doubt it. 2 TB of free space, one partition, shouldn't be any issue. I thought maybe the directory pointer was whacked so I removed the directory and created a totally new one. No luck. I think I may need to look into some better software for backups than M$ supplies. Shouldn't be necessary but at this point, it would seem it is.
      My ComputerSystem Spec
  9.    15 Jun 2017 #9
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,002
    Win 10 Pro (1703)

    That is a common conclusion on various threads about Backup and Restore - reports of difficulties accessing backup disks and images are not uncommon if you have a look at threads on this subject. I recall one contributor who claimed to generally being able to get this to work- but struggling with a backup solution is the last thing you want.

    Most here like Macrium Reflect - responsive, maintained, updated, documented, supported - unlike - er....
      My ComputerSystem Spec
  10.    15 Jun 2017 #10
    Join Date : Jun 2017
    Rotonda West, Fla
    Posts : 6
    Windows 10 Home 64 bit
    Thread Starter

    Thanks, I'll look into it 'cause winblows sux... I'd be back to linux in a heartbeat but I support too many on winblows so have to stay current.
      My ComputerSystem Spec

 


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