There is not usually much downside to a repair install, apart from having to reinstall 100+ updates.
I can see no SFC results in the past few days - the log from yesterday starts out OK until it hits the following error...
Code:
2013-04-20 11:47:37, Info CBS Appl: Partial install Status testing, package: Package_for_KB976933~31bf3856ad364e35~amd64~~6.1.7601.17514, partially installed (true/false), 0
2013-04-20 11:47:37, Info CBS Failed to find package from aggreated XML string, package: Package_for_KB976933~31bf3856ad364e35~amd64~fr-FR~6.1.7601.17514 [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:37, Info CBS Failed to find package from deployment update [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:37, Error CBS Failed to check whether package is partially installed, package: Windows7SP1-KB976933~31bf3856ad364e35~amd64~~6.1.1.17514 [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:37, Info CBS Failed to evaluate external applicability for package update: 976933-0_neutral_PACKAGE [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:37, Error CBS Failed to call external evaluate applicability on package: Package_for_KB976932~31bf3856ad364e35~amd64~~6.1.1.17514, Update: 976933-0_neutral_PACKAGE [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:37, Info CBS Session: 30293420_392007649 initialized by client WindowsUpdateAgent.
followed by this one....
Code:
2013-04-20 11:47:47, Info CBS Appl: Partial install Status testing, package: Package_for_KB976933~31bf3856ad364e35~amd64~~6.1.7601.17514, partially installed (true/false), 0
2013-04-20 11:47:47, Info CBS Failed to find package from aggreated XML string, package: Package_for_KB976933~31bf3856ad364e35~amd64~fr-FR~6.1.7601.17514 [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:47, Info CBS Failed to find package from deployment update [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:47, Error CBS Failed to check whether package is partially installed, package: Windows7SP1-KB976933~31bf3856ad364e35~amd64~~6.1.1.17514 [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
2013-04-20 11:47:47, Info CBS Failed to evaluate external applicability for package update: 976933-0_neutral_PACKAGE [HRESULT = 0x80070490 - ERROR_NOT_FOUND]
It's not until this morning that we hit the SXS error....
Code:
2013-04-21 10:52:48, Info CBS Appl: Package: Microsoft-Windows-InternetExplorer-Optional-Package~31bf3856ad364e35~amd64~ja-JP~8.0.7600.16385, Update: Internet-Explorer-Optional-amd64, Applicable: NeedsParent, Disposition: Superseded
2013-04-21 10:52:48, Info CBS Plan: Package: Microsoft-Windows-InternetExplorer-Optional-Package~31bf3856ad364e35~amd64~ja-JP~8.0.7600.16385, Update: Internet-Explorer-Optional-amd64, current: Absent, pending: Default, start: Superseded, applicable: Superseded, targeted: Superseded, limit: Superseded, selected: Default
2013-04-21 10:52:48, Info CBS Perf: Resolve chain started.
2013-04-21 10:52:48, Info CSI 0000000b@2013/4/21:08:52:48.179 CSI Transaction @0x17f2990 initialized for deployment engine {d16d444c-56d8-11d5-882d-0080c847b195} with flags 00000002 and client id [117]"TI1.30293613_2518810905:2/Microsoft-Windows-InternetExplorer-Package-TopLevel~31bf3856ad364e35~amd64~~10.2.9200.16521"
2013-04-21 10:52:48, Info CBS Exec: Resolving Package: Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514, Update: Internet-Explorer-amd64
2013-04-21 10:52:48, 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
2013-04-21 10:52:48, Error CSI 0000000c@2013/4/21:08:52:48.210 (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]
2013-04-21 10:52:49, Error CSI 0000000d (F) STATUS_SXS_ASSEMBLY_MISSING #136869# from CCSDirectTransaction::OperateEnding at index 0 of 1 operations, disposition 2[gle=0xd015000c]
2013-04-21 10:52:49, Error CSI 0000000e (F) HRESULT_FROM_WIN32(ERROR_SXS_ASSEMBLY_MISSING) #136754# 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]
2013-04-21 10:52:49, Info CBS Failed to pin deployment while resolving Update: Internet-Explorer-amd64 from file: (null) [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-04-21 10:52:49, 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]
2013-04-21 10:52:49, Info CBS Failed to resolve execution update. [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-04-21 10:52:49, Error CBS Failed to resolve execution package: Microsoft-Windows-InternetExplorer-Package~31bf3856ad364e35~amd64~~8.0.7601.17514 [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-04-21 10:52:49, Info CSI 0000000f@2013/4/21:08:52:49.329 CSI Transaction @0x17f2990 destroyed
2013-04-21 10:52:49, Info CBS Perf: Resolve chain complete.
2013-04-21 10:52:49, Info CBS Failed to resolve execution chain. [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-04-21 10:52:49, Error CBS Failed to process single phase execution. [HRESULT = 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING]
2013-04-21 10:52:49, Info CBS WER: Generating failure report for package: Microsoft-Windows-InternetExplorer-Package-TopLevel~31bf3856ad364e35~amd64~~10.2.9200.16521, status: 0x80073701, failure source: Resolve, start state: Absent, target state: Installed, client id: DISM Package Manager Provider
2013-04-21 10:52:49, Info CBS Failed to query DisableWerReporting flag. Assuming not set... [HRESULT = 0x80070002 - ERROR_FILE_NOT_FOUND]
2013-04-21 10:52:49, Info CBS Failed to add %windir%\winsxs\pending.xml to WER report because it is missing. Continuing without it...
2013-04-21 10:52:49, Info CBS Failed to add %windir%\winsxs\pending.xml.bad to WER report because it is missing. Continuing without it...
2013-04-21 10:52:50, Info CBS Reboot mark refs: 0
Unless Tom can think of a better solution, I would recommend doing a repair install, using SP1 media.