Windows 8.1: System Image Backup of C: drive fails, Error 0x8078012D and 0x8007045D

Hello,

I need to correct this post, as I've found out that my solution was actually due to another factor.

On my system I had made a clone of my hard drive as a backup to my operating system in case I experienced another crash of my computer which prevented me from booting and which also wouldn't boot from a flash drive with Windows 8.1.

When I was successful at doing a System Image backup, I had the clone drive (drive D:) disconnected.  The System Image backup works when only the C: drive is connected, but not when both the C: and D: drives are connected.

Therefore, optimizing my hard drive as I stated below, probably has little to do with my successful System Image backup.  In either case I believe Microsoft has a bug with the System Image backup.  I shouldn't have to disconnect a hard drive in order for the System Image backup to work, nor should it give error messages indicating that the backup drive can't be found or accessed, when the backup drive(s) are working fine except for the System Image Backup.

I've found a solution for creating a System Image Backup (at least in my case).  The solution has to do with optimizing the OS(C:) drive even though my failure occurred  when attempting to backup the EFI System partition using Windows 8.1.

Here are the details:

• Open Windows Explorer
• Right click on the OS(C:) drive
• select "properties"
  • select "tools"
    • select "optimize"
    • The Optimize Window should now be open
    • select the OS(C:) drive
    • select "Optimize" and optimization of the OS(C:) drive should begin
    • Note: In my case there is also a "\?\Volume{ed...}, which is actually the EFI System Partition.  My computer shows it to be 91% fragmented, but attempting to optimize it doesn't do anything.
• After the OS(C:) drive has been optimized go back to the File History (in Control Panel) and select System Image Backup.  This time the backup works, at least in my case.
• Using the Windows Powershell and the command line shown in my previous post also works.

I hope this helps!

thanks for the suggestion,

but my C: volume is on an SSD drive,

so it's not appropriate to optimise (defragment) it

hi i have the same issue with my buffalo external hard drive. since i upgrade my windows to 8.1 i always get this i/o error.

as you mentioned before i think its because of encryption because i have 2 buffalo external hard drive and same model and same size and i just have issue with the one that i encrypt it, the other one just work great.

so i think windows 8.1 does not support encryption properly.

by the way i did the check disk, scan for virus, change windows twice, update windows and drivers and still not working.

also when i connect it to my tablet which is windows 8 there is no problem and just work fine.

Yeah, I really think there's something wrong with the MS System Image function. The error message that we get is clearly bogus, and Microsoft just haven't really responded with anything that addresses the problem. Maybe it will be fixed in Windows 9, ahem

Hello,

I wondered if anyone has any more suggestions to solve this problem?

I still cannot successfully make a system image backup of my C: drive.

CHKDSK /R never finds any errors on my C: drive, nor on any external USB drive or fileshare I try to create the image on.

No amount of disabling other services or background processes or 'clean booting' has ever made the process work.

It's been about a year now since I could successfully make a system image of my C: drive - if the drive ever fails I will have to rebuild from scratch! :/