I get code 80073701 using Windows Update to install SP1, but other hotfixes work OK.
I ran System Update Readiness tool, then SFCFix.
Here's CheckSUR.log and SFCFix.txt.
=================================
Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 26.0
2015-08-07 15:37
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 710276b12e8..629234a6325_31bf3856ad364e35_6.1.7600.20710_251e8410f2d316a5 HKLM\Components\CanonicalData\Deployments
Summary:
Seconds executed: 1266
Found 1 errors
CSI Missing Deployment Key Total count: 1
SFCFix version 2.4.5.0 by niemiro.
Start time: 2015-08-07 16:01:27.340
Microsoft Windows 7 - amd64
Not using a script file.
AutoAnalysis::
SUMMARY: Some corruptions could not be fixed automatically. Seek advice from helper or sysnative.com.
CBS & SFC total detected corruption count: 0
CBS & SFC total unimportant corruption count: 0
CBS & SFC total fixed corruption count: 0
SURT total detected corruption count: 1
SURT total unimportant corruption count: 0
SURT total fixed corruption count: 0
AutoAnalysis:: directive completed successfully.
Successfully processed all directives.
SFCFix version 2.4.5.0 by niemiro has completed.
Currently storing 0 datablocks.
Finish time: 2015-08-07 16:02:41.415
----------------------EOF-----------------------
I ran System Update Readiness tool, then SFCFix.
Here's CheckSUR.log and SFCFix.txt.
=================================
Checking System Update Readiness.
Binary Version 6.1.7601.22471
Package Version 26.0
2015-08-07 15:37
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 710276b12e8..629234a6325_31bf3856ad364e35_6.1.7600.20710_251e8410f2d316a5 HKLM\Components\CanonicalData\Deployments
Summary:
Seconds executed: 1266
Found 1 errors
CSI Missing Deployment Key Total count: 1
SFCFix version 2.4.5.0 by niemiro.
Start time: 2015-08-07 16:01:27.340
Microsoft Windows 7 - amd64
Not using a script file.
AutoAnalysis::
SUMMARY: Some corruptions could not be fixed automatically. Seek advice from helper or sysnative.com.
CBS & SFC total detected corruption count: 0
CBS & SFC total unimportant corruption count: 0
CBS & SFC total fixed corruption count: 0
SURT total detected corruption count: 1
SURT total unimportant corruption count: 0
SURT total fixed corruption count: 0
AutoAnalysis:: directive completed successfully.
Successfully processed all directives.
SFCFix version 2.4.5.0 by niemiro has completed.
Currently storing 0 datablocks.
Finish time: 2015-08-07 16:02:41.415
----------------------EOF-----------------------