Error in backup 0x807800C5

I had the same problem doing a System Image to a network share. I solved it and it now works after lots of research.. The following fixed my issue:

Turned all these 4 services to Automatic Startup:

-Microsoft Software Shadow Copy Provider

-Volume Shadow Copy

-Windows Backup

-Block Level Backup Engine Service

I also started them if they weren't running.

Used IP address instead of sharename when choosing the location of the network share. Ie type \192.168.0.10\backupfolder rather than \SERVER\backupfolder

Emptied Recycle Bin, closed unnecessary running applications

Checked permissions on server backup folder. Some people recommended adding Everyone and giving them Full Control, but I didn't find this necessary. I checked that the System, Network and Administrators group (which I'm a member of) had Full Control.

Turned Power settings on both machines (local and network) to Never turn off.

Oh I also temporarily turned off File History.

Not sure which of these made the difference but try them all, it may work for you.

Note I did NOT disable my AV (AVG -Active, Defender and Malwarebytes also on system) or Firewall nor did I need to repartition my drives. Also I'm on Windows 10, so saying it doesn't work on Windows 10 is wrong.

Good luck!

I have the same problem.  Not only I cannot connect to my NAS, now I can't create a system image!  What gives with this C#%^$$!!!

Hi

Thank you for this.

My PC commenced life with Windows 8.2 onboard.  I upgraded to Windows 10 when it became available.

The Windows 10 system ran for a while but one day it crashed.  After re-boot it was sluggish but usable.

A month or so ago Microsoft launched a sizeable update and my system was automatically processed.

After the update Microsoft Edge would not work.

Thinking that my system needed an overhaul I downloaded a diagnostic pack from Reimage. 

Some years back I had had a good experience of that type of support on a different PC.

The diagnostic failed and I was compelled to contact a Reimage Technician.

He told me that quite a lot was wrong with my system including a Trojan.

Reimage rebuilt the system for me and it seemed OK.

However, back-up did not work and gave the error message stated.

I do not understand the ins and outs of software but did observe the point of failure.

I figured that that the backup created by the ‘new’ Windows 10 system did not like the ‘old’ version that was on my external drive.

I put that theory to the test by formatting another external drive and running back-up on it.  It worked a treat.

I then changed the location of my files on my usual external drive and ran back-up.  It too worked a treat.  Problem solved!

File History did not work.  It would not recognise the letter of my external hard drive.

Someone on YouTube had experienced something similar.

In the depths of Windows 10 there is a switch that facilitates the resetting of the letter for the drive that File History uses.

I reset the drive letter and File History works a treat!  I am left wondering if that reset would have fixed the original back-up problem.

Microsoft Edge still did not work!  Someone on YouTube had traced that problem to a confliction with the antivirus software that banks issue for free.

By coincidence my bank was offering an upgraded version of Trusteer Endpoint Protection.

I decided to delete the Trusteer version on my PC and try Microsoft Edge.  It worked! 

I then downloaded the new version of Trusteer and all seems to be well.

Windows 10 seems to be reasonably stable but when things go wrong Microsoft do not seem to have the answer as far as I am concerned.

I find this type of task(s) interesting but would be quite happy to be without the hassle.

AndrewCheyneX#

Hi 

Thank you for this.

My PC commenced life with Windows 8.2 onboard.  I upgraded to Windows 10 when it became available.

The Windows 10 system ran for a while but one day it crashed.  After re-boot it was sluggish but usable.

A month or so ago Microsoft launched a sizeable update and my system was automatically processed.

After the update Microsoft Edge would not work.

Thinking that my system needed an overhaul I downloaded a diagnostic pack from Reimage. 

Some years back I had had a good experience of that type of support on a different PC.

The diagnostic failed and I was compelled to contact a Reimage Technician.

He told me that quite a lot was wrong with my system including a Trojan.

Reimage rebuilt the system for me and it seemed OK.

However, back-up did not work and gave the error message stated.

I do not understand the ins and outs of software but did observe the point of failure.

I figured that that the backup created by the ‘new’ Windows 10 system did not like the ‘old’ version that was on my external drive.

I put that theory to the test by formatting another external drive and running back-up on it.  It worked a treat.

I then changed the location of my files on my usual external drive and ran back-up.  It too worked a treat.  Problem solved!

File History did not work.  It would not recognise the letter of my external hard drive.

Someone on YouTube had experienced something similar.

In the depths of Windows 10 there is a switch that facilitates the resetting of the letter for the drive that File History uses.

I reset the drive letter and File History works a treat!  I am left wondering if that reset would have fixed the original back-up problem.

Microsoft Edge still did not work!  Someone on YouTube had traced that problem to a confliction with the antivirus software that banks issue for free.

By coincidence my bank was offering an upgraded version of Trusteer Endpoint Protection.

I decided to delete the Trusteer version on my PC and try Microsoft Edge.  It worked! 

I then downloaded the new version of Trusteer and all seems to be well.

Windows 10 seems to be reasonably stable but when things go wrong Microsoft do not seem to have the answer as far as I am concerned.

I find this type of task(s) interesting but would be quite happy to be without the hassle.

AndrewCheyneX#

Thanks. Veeam endpoint looks like it will do the trick. and fit my budget.