The background CBS.log reveals the following error - amongst others....
Code:
2013-08-23 08:58:11, Info CBS Exec: Resolving Package: Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514, Update: Internet-Explorer-amd64, PinDeployment: amd64_microsoft-windows-i..explorer-deployment_31bf3856ad364e35_8.0.7601.17514_none_c6a79c0da6ac8a8c
2013-08-23 08:58:11, Error CSI 0000010c@2013/8/23:07:58:11.189 (F) d:\win7sp1_gdr\base\wcp\componentstore\csd_locking.cpp(324): Error STATUS_SXS_ASSEMBLY_MISSING originated in function CCSDirectTransaction::LockComponent expression: (null)
[gle=0x80004005]
2013-08-23 08:58:17, Error CSI 0000010d (F) STATUS_SXS_ASSEMBLY_MISSING #686580# from CCSDirectTransaction::OperateEnding at index 0 of 1 operations, disposition 2[gle=0xd015000c]
2013-08-23 08:58:17, Error CSI 0000010e (F) HRESULT_FROM_WIN32(ERROR_SXS_ASSEMBLY_MISSING) #686465# from Windows::ServicingAPI::CCSITransaction::ICSITransaction_PinDeployment(Flags = 0, a = Microsoft-Windows-InternetExplorer-Deployment, Version = 8.0.7601.17514, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral, cb = (null), s = (null), rid = [105]"Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514.Internet-Explorer-amd64", rah = (null), manpath = (null), catpath = (null), ed = 0, disp = 0)[gle=0x80073701]
2013-08-23 08:58:17, Info CBS Failed to pin deployment while resolving Update: Internet-Explorer-amd64 from file: (null) [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-08-23 08:58:17, Info CBS Failed to resolve item[0] in Package: Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514, Update: Internet-Explorer-amd64 [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-08-23 08:58:17, Info CBS Failed to resolve execution update. [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-08-23 08:58:17, Error CBS Failed to resolve execution package: Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514 [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
I need to do some research and work out how best to resolve this - back later.