I am attempting to repair a Windows Vista PC and it will not run Windows Update. It does not matter if all updates are selected or just 1, Windows Update will start to download the updates and then gives an error code of 80071a91. The error code is always the same. according to Microsoft's website this is due to bad .blf and .regtrans-ms files and they suggest doing the following from command prompt run as admin:
attrib -s -h *
followed by a reboot to rebuild these files
I have tried this and am still getting the same error code. The updates that are trying to install are: KB973346, KB969B97, KB961371, KB961501, KB96B537, KB970238, KB967632, and KB905866. Any advice would be appreciated.