1803 creating a system image fails with RPC server error 0x800706BA

Bree · 10 Jul 2018

Still not fixed in cumulative update KB4338819 Windows 10 v1803 Build 17134.165 - July 10

Bree · 12 Jul 2018

Bree said:

In 1803 build 17134.1 32-bit (x86) as released on 30th April creating a system image fails with "The RPC server is unavailable. (0x800706BA)"...
...As this error occurs when booting from the install media made by the MCT it is almost certainly an inherent fault in the 32-bit version of 1803 as released.

My thanks go to @sunberg this heads-up...

sunberg said:

Btw, MCT now downloads .112 build. Just FYI.

The new media made by the MCT installs the base build 17134.112. Unfortunately after using this new 1803 media to do a clean install of x86 1803, making a system image still fails with either the 0x800706BA RPC error or 'None of the items included in backup were backed up. (0x80780049)'. I would expect that booting from the media can't restore a system image either (though I didn't bother to test that).

benhase · 19 Jul 2018

Here is the fix.
Windows 10 Insider Preview Build 17711
We fixed an issue where creating a system image from backup and restore in control panel would fail on x86 machines.

Announcing Windows 10 Insider Preview Build 17711 - Windows Experience BlogWindows Experience Blog

Bree · 19 Jul 2018

benhase said:

Here is the fix.
Windows 10 Insider Preview Build 17711
We fixed an issue where creating a system image from backup and restore in control panel would fail on x86 machines.

Wecome to TenForums @benhase and thank you for the heads-up. Hopefully now that MS have (finally) acknowledged that the problem exists, this fix will trickle down into a cumulative update for 1803 some time soon.

I see you also posted it on this TechNet thread The backup failed. The RPC server is unavailable (0x800706BA)

Bree · 25 Jul 2018

Still no fix in 17134.191

VikingOy · 04 Aug 2018

Hi All,
I copied the wbengine.exe file from a previous 1709 installation (Image Backup) on the same machine, into the system32 folder on the 1803 installation, and retried to create a system image. Now I'm getting this error message:

One of the volume specified for backup is invalid because it is either not on a fixed drive, is not formatted NTFS/ReFS, or is read only. To conevert the file system on a volume fra FAT32 to NTFS, at an elevated prompt type: CONVERT <volumeletter> /FS:NTFS (0x807011D)

Obviously, nothing in this error messages makes any sense at all.
Could someone please prove a copy of the updated wbengine.exe from Windows 10 Insider Preview Build 17711 at dropbox or OneDrive or some other cloud store and provide a link ?

Bree · 14 Aug 2018

Not been fixed in 17134.228.

GMPOWER · 15 Aug 2018

VikingOy said:

Hi All,
I copied the wbengine.exe file from a previous 1709 installation (Image Backup) on the same machine, into the system32 folder on the 1803 installation, and retried to create a system image. Now I'm getting this error message:

One of the volume specified for backup is invalid because it is either not on a fixed drive, is not formatted NTFS/ReFS, or is read only. To conevert the file system on a volume fra FAT32 to NTFS, at an elevated prompt type: CONVERT <volumeletter> /FS:NTFS (0x807011D)

Obviously, nothing in this error messages makes any sense at all.
Could someone please prove a copy of the updated wbengine.exe from Windows 10 Insider Preview Build 17711 at dropbox or OneDrive or some other cloud store and provide a link ?

I pulled this from Preview Build 17735, and it worked fine for me, Dropbox - wbengine.exe. Just make sure to backup your current version before copying it to the system32 folder, then just reboot your system and it should work.

isamma · 19 Aug 2018

GMPOWER said:

I pulled this from Preview Build 17735, and it worked fine for me, Dropbox - wbengine.exe. Just make sure to backup your current version before copying it to the system32 folder, then just reboot your system and it should work.

recovery is not working yet but backup is working ?

Bree · 19 Aug 2018

isamma said:

recovery is not working yet but backup is working ?

Neither creating or restoring a system image will work in an unmodified 32-bit 1803, not even in the latest os build 17134.228. This problem is not present in the 64-bit 1803.

As has been posted earlier, replacing wbengine.exe with a known working one (typically the one from 32-bit 1709) allows creating system images to work in 32-bit 1803.

You cannot restore any system image by booting a 32-bit 1803 system to Advanced Startup from the Settings > Recovery page, that will still fail with an RPC error.

1803 creating a system image fails with RPC server error 0x800706BA-1803-x86-restore-fail.jpg

To restore a system image you need to boot the the Advanced Start using the 1709 (or any earlier) 32-bit recovery environment. to do this you can boot from a recovery drive made by any 32-bit machine running 1709 or earlier, or a bootable 32-bit install media usb for any version except 1803. Even a usb for the original 1507, os build 10240 will work.