Yet another 800B0100 error installing Windows 7 SP1 (32-bit)

[tomh009]

Rebuilding an older laptop for my niece, with Windows 7 Pro 32-bit, I'm stuck getting Windows Update to install SP1 (other updates installed OK). SURT didn't do it for me, it's complaining about CSI missing deployment keys (only two, but it appears to be two too many).

Any help would be much appreciated -- thanks!

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Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 25.0
2014-09-16 21:43
Checking Windows Servicing Packages
Checking Package Manifests and Catalogs
Checking Package Watchlist
Checking Component Watchlist
Checking Packages
Checking Component Store
(f) CSI Missing Deployment Key 0x00000000 policy.8.0...ft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.1801_516953ad0f4d16c4 HKLM\Components\CanonicalData\Deployments 
(f) CSI Missing Deployment Key 0x00000000 microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.1801_d088a2ec442ef17b HKLM\Components\CanonicalData\Deployments 
Summary:
Seconds executed: 661
 Found 2 errors
  CSI Missing Deployment Key Total count: 2

=================================
Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 25.0
2014-09-17 09:03
Checking Windows Servicing Packages
Checking Package Manifests and Catalogs
Checking Package Watchlist
Checking Component Watchlist
Checking Packages
Checking Component Store
Summary:
Seconds executed: 1339
 No errors detected