M93p+HD8570+Win7+KB267038/IE10: WMP crashes with BEX error playing AVI

Question

Apparently this one's been out and known about for a while, but I just ran into it this week while finishing up the custom software install on a newly received M93p with Windows 7 Pro x64, which also included the AMD HD8570 graphics upgrade.  Driver for the HD8570 (OEM) is provided by Lenovo, not by AMD.  This is not a retail AMD card, but a Lenovo-provided OEM upgrade of an AMD card, and the drivers are only available from Lenovo.
Turns out Windows Media Player 12 on Win7 with the AMD HD8570 graphics on the M93p cannot play AVI files now, instead crashing with a BEX error.
Turns out this is caused by a Microsoft update KB2670838 in conjunction with certain AMD graphics and machine chipsets (Q87 on the M93p), which apparently includes the discrete HD8570 and the M93p.  There is a discussion of this problem on Sevenforums in this thread, as well as in other places on the Internet.
Unfortunately, KB2670838 is also tied to the Windows Update that delivered IE10.  So if you selectively UNINSTALL the KB2670838 update (which DOES eliminate the BEX error in WMP when playing AVI files) you also trigger the backout of IE10 which reverts back to the originally delivered IE8... which is probably undesirable for most of us.  So while you now CAN play AVI files again, you're sadly back to IE8.
Also, the most recent Windows Update to IE11 in Win7 also retains KB2670838, so really any "current" version of IE beyond IE8 with this particular AMD hardware is going to see this BEX crash when WMP plays AVI files.  There simply is no way to selectively uninstall KB2670838 by itself, while retaining IE10 or IE11.
Rumor has it that MS is "working on a fix", but for the moment it is obviously not publicly available.
That's the story.  Just wanted to share what information I now am aware of.
If you do want to install IE10 or IE11 on Win7 and with the M93p and HD8570, then your temporary "solution" in this particular hardware/software configuration is to instead use some other media player program when wanting to play an AVI that you would otherwise use WMP for.  For example, the English version of the excellent Pot Player is a superb alternative, as it plays EVERYTHING!!

Answer 1

I am having almost exactly the same problem with Lightroom 4 and now, with Lightroom 5.
I was able to import .NEF photos, .PEF and .RW2 RAW formats from the folders already on my external RAID harddrive. However, I was unable to import video from the same folders. My problem is exactly like the one ntreuter was having -- I can sometimes get a few video files to import, but then the import process runs for a very long time,and I get an popup error message "There was a problem importing the video".
When I try to "syncronize folder", the same thing happens. I am unable to import any video and the process ends with the popup error message "There was a problem importing the video".  Sometimes I am also unable to upload photos because the import process crashes because of video files.
This is crazy. I've searched online and there are a number of reports of this problem, but no clear solution at all.
My system:
Lenovo W520
2.20 gigahertz Intel Core i7-2720QM
16 gigs RAM
64 kilobyte primary memory cache
256 kilobyte secondary memory cache
6144 kilobyte tertiary memory cache
64-bit ready
Multi-core (4 total)
Hyper-threaded (8 total)
Intel(R) HD Graphics Family [Display adapter]
NVIDIA Quadro 1000M [Display adapter]
Any suggestions on how to resolve this problem are greatly appreciated!