WIndows Uodate Fail repeatedly error

KB2991963 & KB3005607 fail repeatedly. Have run Checksur and sfc multiple times - no errors either one. Have deleted software distribution folder & catroot2 per MS support info I followed., attempted again. Error is 8024200d. Uploaded cbs zip and windowsupdate.log files. Please advise

Please follow the Windows Update Posting Instructions and post the requested data

If the file is too large (8MB compressed), remove the older CBSPersist cab files until the final file is below the limit - you can always post them separately after zipping them. (the forum doesn't allow the upload of bare CAB files, for a number of reasons)

Please also post the C:\Windows\windowsudpate.log file

Here's the error messages from your CBSPersist file...

Code:

 Line 99: 2015-03-02 10:20:12, Error                 CBS    Exec: Failed to pre-stage package: Package_1_for_KB3005607~31bf3856ad364e35~amd64~~6.1.1.0, file: AudioEng.dll, source: \\?\C:\Windows\SoftwareDistribution\Download\eb17595be0f0cf82ce2252f15051d82b\amd64_microsoft-windows-audio-audiocore_31bf3856ad364e35_6.1.7601.22826_none_d546840d14634c73\AudioEng.dll, sandbox: (null) [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
 Line 103: 2015-03-02 10:20:12, Error                 CBS    Failed to pre- stage package: Package_for_KB3005607~31bf3856ad364e35~amd64~~6.1.1.0 [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
 Line 106: 2015-03-02 10:20:12, Error                 CBS    Failed to process single phase execution. [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
 Line 317: 2015-03-02 10:20:12, Error                 CBS    Exec: Failed to pre-stage package: Package_3_for_KB2991963~31bf3856ad364e35~amd64~~6.1.1.0, file: imjpuexc.exe, source: \\?\C:\Windows\SoftwareDistribution\Download\e67e6049f855fce56035141004d677d3\amd64_microsoft-windows-d..andlinepropertytool_31bf3856ad364e35_6.1.7601.22764_none_69b6cca4b0c02d26\imjpuexc.exe, sandbox: (null) [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
 Line 321: 2015-03-02 10:20:12, Error                 CBS    Failed to pre- stage package: Package_for_KB2991963~31bf3856ad364e35~amd64~~6.1.1.0 [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
 Line 324: 2015-03-02 10:20:12, Error                 CBS    Failed to process single phase execution. [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]

It looks to me as if your SoftwareDownloads folder is corrupt.



Open an Elevated Command Prompt
Run the following commands

NET STOP WUAUSERV
REN C:\WINDOWS\SoftwareDistribution SDOLD
NET START WUAUSERV

reboot
then wait 10 minutes, and open Windows Updates, and run a Check for Updates.

Install only the oldest update found - and reboot once installed
then go back to Windows updates and install the others.