Netflix app and d3d10_1.dll invalid hashes (Audit Failure)

[shura]

I had excellent experience with this forum before and Dell customer support is claiming that everything is peachy, so here goes.

I have a week-old Dell XPS 13 (9343 version) here, Win 8.1 x64. Here's one issue, according to the Event Viewer: intermittent audit fails for d3d10_1.dll (the one in System32, not the one in WowSys64), bad hash and all.
I don't really get all hypochondriac on the Event Viewer and was just trying to find any info on why my Netflix app intermittently decides to play videos at 1 fps. This audit failure was what I found. Also, a fair number of warnings about firmware limiting CPU speed. This, Google tells me, is fairly common with devices going nuts to save battery. So, the actual problem is the Netflix app, but I wonder if this is DirectX (or reduced CPU speed) related. When trying to play in browser, intermittently it will either play OK, or crap out just like the app.

sfc and chkdsk report no issues with integrity or the file system (Samsung SSD here), respectively. Scanned with malwarebytes just in case, all clear. Again, a week-old laptop, and I am quite computer literate. I can post the exact event descriptions here, if needed.

Any thoughts?

Thanks!

 

[xilolee]

Hi shura.
Have you already tried Control Panel\Hardware and Sound\Power Options - High performance plan?

 

[shura]

Hi shura.
Have you already tried Control Panel\Hardware and Sound\Power Options - High performance plan?

Are you commenting on the firmware-perpetrated CPU throttling?
Actually, I did quite a bit of fiddling with the power options because of the content-dependent autobrightness (officially impossible to disable at the moment, according to Anandtech), except I never switched to this plan.
I mean, I'd like this laptop to actually save the battery. Besides, this audit failure does occur on AC power, where (I carefully checked) most of the CPU throttling is off.

 

[shura]

I have tracked it pretty much exactly. Every time I try playing a video in the Netflix app (even if it plays normally), I get:

Code Integrity determined that the page hashes of an image file are not valid. The file could be improperly signed without page hashes or corrupt due to unauthorized modification. The invalid hashes could indicate a potential disk device error.


File Name: \Device\HarddiskVolume5\Windows\System32\d3d10_1.dll