Posted 19 January 2015 - 04:41 AM
Today I did a clean installation of Windows 8 and went straight to Windows Update to download all the updates. In total there were 116 to download, 115 for windows and 1 for Windows Defender. In windows Update history afterwards all were listed as succeeeded (installed correctly) except the Windows Defender definition which was listed as failed. The error code details shown for it was 80070666..but there was no information on what the code meant. The update was Windows Defender KB2267602 1.191.2648.0.
To configure all the above updates obviously required a restart. After the restart Windows made no attempt to redownload the problematic Windows Defender Update. But a newer version KB2267602 1.191.2651.0. was listed along with 4 more Windows Updates so those were all downloaded and installed correctly including the newer Windows Defender definition. In Windows Update history all listed as succeeded. I checked the history again and the problematic Defender Update listed above (Windows Defender KB2267602 1.191.2648.0.) was still there showing as failed. Since then another 2 Window Defender definitions KB2267602 1.191.2655.0 and KB2267602 1.191.2687.0 have both been download and successfully installed.
1.Has anybody any idea what might have happened here? Has the failed Windows Defender definition KB2267602 1.191.2648.0 been installed or not?
2.Would an SFC Scannow have shown errors if there was a problem? I ran SFC Scannow and it came up fine..no errors.
P.S Im sorry if the above explanation was a bit long winded!! I just wanted to try explain what happened correctly lol