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Windows Security Log Reports Event ID 5038 Image Hash Invalid

A client of mine has been having trouble with a PC of theirs lately. Things have been running slow and reboots have been required. When I review the event logs all I see in the application logs are various programs hanging. In the security logs I get the following on a reboot.

"Code integrity determined that the image hash of a file is not valid. The file could be corrupt due to unauthorized modification or the invalid hash could indicate a potential disk device error.

File Name: \Device\HarddiskVolume3\Windows\System32\drivers\WavxDMgr.sys"

I have searched around all I could but it seems that this issue is primarily based on what file is reporting the error, and I couldn't find any info on this particular file. I was hoping someone could give me a heads up as to what this error implies. Does anyone know what this file is, or what program put this file on the machine?

Merete

I sourced this informative piece with a possible fix.
The symptoms quoted here seems the same as yours and you might like to consider the repair tool offered after looking at the other details /explainations outlined there is also a
Video Solution on How to Modify or Delete Windows System Registry

WavxDMgr.sys File Information
WavxDMgr.sys is simply a process used by your PC to open and execute the files that are required to run software and applications.
It is known to all that Windows includes a huge number of files and folders, which are the main programs that comprise Windows operating system.
If you are trying to launch a program but it cannot response, that means the associated WavxDMgr.sys process are missing or corrupted from the Applications folder.
Occasionally, Windows becomes unresponsive because more and more process like WavxDMgr.sys file are corrupt or are an incorrect version that is not supported by the program or feature trying to access it.
What is WavxDMgr.sys error
A WavxDMgr.sys file should only be located in the Windows\system32 folder of your pc as this is the default path where this file is designed to execute from. Unfortunately, some of the undetected spyware may be responsible for the WavxDMgr.sys errors occurring on your computer by placing a file with the similar name. Moreover, an uninstall of a program that has been performed incorrectly or incompletely may also lead to the WavxDMgr.sys errors.

Serious consequences when come across the error on computer:
•Computer system operates very slowly
•Some programs cannot be activated and used as normal
•Annoying error messages constantly pop up on the computer
•Blue Screen of Death happens occasionally
•System sometimes result in crash
•Windows settings have been changed in a wrong way

What are the main causes of the WavxDMgr.sys error?
Please continue>
http://www.pcmaxutilities.com/wikiexefiles/wavxdmgr-sys-error-fix-guide.html
Hope it helps
Merete

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I did some of the research at Wave's site, and found out about the Trusted Platform Module stuff. Saw alot of references to DELL in the articles. Interesting, but it appears dell installs software related to this hardware. We removed the dell software, and the errors no longer show up.