To fix WSUS errors with a cloned machines that was not sysprepped you will need to firstly delete the machine form the WSUS console then run he following commands on the PC/server that has been cloned:

gpupdate
net stop wuauserv /y
net stop BITS /y
rd C:\WINDOWS\SoftwareDistribution /s /Q
del "c:\windows\windowsupdate.log"
regsvr32 WUAPI.DLL /s
regsvr32 WUAUENG.DLL /s
regsvr32 WUAUENG1.DLL /s
regsvr32 ATL.DLL /s
regsvr32 WUCLTUI.DLL /s
regsvr32 WUPS.DLL /s
regsvr32 WUPS2.DLL /s
regsvr32 WUWEB.DLL /s
regsvr32 msxml3.dll /s
net start wuauserv /y
wuauclt.exe /resetauthorization /detectnow

Then restart the PC/Server and re-run Windows Update