Update Error 800B0100, unavailable repair files

I noticed end of last month after coming back from travel that my PC did not offer any updates. To make sure I manually started the check for updates. It came back with Windows Update Error 800b0100.

I tried
- restarting PC
- restarting windows update service
- renaming windows/SoftwareDistribution
- renaming windows/system32/catroot2
- sfc /scannow (which repaired some unrelated stuff in the first run and comes back clean since)
- re-registering BITS and Windows update dlls
- running update readiness tool

That one actually gave some useful info in the CBS.log:

Code:

=================================
Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 25.0
2014-09-03 20:49

Checking Windows Servicing Packages

Checking Package Manifests and Catalogs
(f)    CBS MUM Corrupt    0x800F0900    servicing\Packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.mum        Line 1: 
(f)    CBS Catalog Corrupt    0x800B0100    servicing\Packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.cat        

Checking Package Watchlist

Checking Component Watchlist

Checking Packages

Checking Component Store

Summary:
Seconds executed: 226
 Found 2 errors
  CBS MUM Corrupt Total count: 1
  CBS Catalog Corrupt Total count: 1

Unavailable repair files:
    servicing\packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.mum
    servicing\packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.mum
    servicing\packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.cat
    servicing\packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.cat

My problem now:

Where to get the correct files to put into
C:\Windows\Temp\CheckSur\Servicing\Packages
And
C:\Windows\Temp\CheckSur\Winsxs\Manifests

Code:

=================================
Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 25.0
2014-09-04 19:53

Checking Windows Servicing Packages

Checking Package Manifests and Catalogs
(f)    CBS MUM Corrupt    0x800F0900    servicing\Packages\WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.mum        Line 1: 
(fix)    CBS MUM Corrupt    CBS File Replaced    WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.mum from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab.
(fix)    CBS Paired File    CBS File also Replaced    WUClient-SelfUpdate-Aux-AuxComp~31bf3856ad364e35~amd64~en-US~7.6.7600.320.cat from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab.

Checking Package Watchlist

Checking Component Watchlist

Checking Packages

Checking Component Store

Summary:
Seconds executed: 230
 Found 1 errors
 Fixed 1 errors
  CBS MUM Corrupt Total count: 1
  Fixed: CBS MUM Corrupt.  Total count: 1
  Fixed: CBS Paired File.  Total count: 1

Checking for Updates ... 16 Updates found


I thank you very much for you prompt help!

Cheers