I initially posted my problem on the answers.microsoft.com forum but was directed here instead. The posting there is at
http://answers.microsoft.com/en-us/ie/forum/ie11-windows_7/internet-explorer-11-will-not-install-due-to/4d410686-a159-4121-bc64-1035c46988d5
Trying to update IE 9 to IE 11 on a Windows 7 Pro SP1 64-bit laptop which is on our corporate network. Windows update history listed the IE 11 update as failed so I tried the manual installer (IE11-Windows6.1-x64-en-us.exe). It failed also, with
these two events in the event viewer: "Installation Failure: Windows failed to install the following update with error 0x80070643: Internet Explorer 11 for Windows 7 for x64-based Systems." and "Installation Failure: Windows failed to install
the following update with error 0x80073aa2: Update for Windows (KB2670838)."
So, I downloaded the standalone installer for KB2670838 and attempted installation several times, with anti-virus off, clean boot, safe mode, using the administrator account, etc, which all failed. I also tried the IE10 standalone installer but it fails
also.
At this point I ran SFC /scannow and the log file shows only one file that it could not repair:
2014-09-09 13:48:38, Info CSI 00000548 [SR] Cannot repair member file [l:22{11}]"mpg2splt.ax" of Microsoft-Windows-DirectShow-MPEG2,
Version = 6.1.7601.17528, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
2014-09-09 13:48:38, Info CSI 0000054a [SR] Cannot repair member file [l:22{11}]"mpg2splt.ax" of Microsoft-Windows-DirectShow-MPEG2,
Version = 6.1.7601.17528, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch
2014-09-09 13:48:38, Info CSI 0000054b [SR] This component was referenced by [l:154{77}]"Package_1_for_KB2479943~31bf3856ad364e35~amd64~~6.1.1.0.2479943-2_neutral_GDR"
2014-09-09 13:48:38, Info CSI 0000054e [SR] Could not reproject corrupted file [ml:520{260},l:46{23}]"\??\C:\Windows\System32"\[l:22{11}]"mpg2splt.ax";
source file in store is also corrupted
I ran SFC a few more times but it still is unable to fix the mpg2splt.ax file. I tried replacing that file with a known good copy from another Win7 Pro SP1 64-bit computer and one that I pulled from a Win7 Pro SP1 installation disk but SFC and the KB2670838
installer still fail. From my research it seems this particular file is related to DirectX, but DXdiag does not report any issues. It seems that DirectX on Windows 7 is integrated so there is no easy way to uninstall/reinstall it to try to fix the corrupt
file.
After hitting a dead-end in my troubleshooting efforts I tried system restore but it failed also. System restore had actually been turned off. There is plenty of hard disk space so I don't know if the user turned it off or something else happened there.
I have not yet tried a repair install because Windows installation disks did not come with the laptop (just a recovery partition). I have a Win7 Pro SP1 disk from another computer but I don't know if I can use that or not? Everything else seems
to work fine on the computer and even IE9 works despite the corrupt file so I would like to fix it if possible.
