I am getting these below errors on my windows 2008 R2 server. Can somebody tell what this is about ? Event ID 6281 System Integrity 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\HarddiskVolume2\Windows\System32\l3codeca.acm

Hello Shahid, Is this a Terminal Server or are we using RDP? Do we have audio redirection enabled?Thanks, Darrell Gorter This posting is provided "AS IS" with no warranties, and confers no rights. Volume Activation documentation on TechNet http://technet.microsoft.com/en-us/windows/dd197314.aspx http://technet.microsoft.com/en-us/library/dd996588.aspx VAMT - Volume Activation Management Tool - Download link http://www.microsoft.com/downloads/details.aspx?FamilyID=ec7156d2-2864-49ee-bfcb-777b898ad582&displaylang=en

yes most of these machines are also hosting TS role. Yes we are managing these through RDP. Audio redirection is what is there by default. Do you mean to say this error is related to Audio redirection of RDP ? can you shed more light, we just want to know the severity of this error actually we are having another serious problem of strange system behavior for one of the machines and suspect is on this

Hello Shahid Roofi, Yes, when audio is redirected to the client and we load audiodg, it enumerates the codecs to get information from them. Not all codecs are signed to load in a protected process and if they are not this error is generated. more on the protected process http://www.microsoft.com/whdc/driver/install/drvsign/pmp-sign.mspx you should be able to ignore the error.Thanks, Darrell Gorter This posting is provided "AS IS" with no warranties, and confers no rights. Volume Activation documentation on TechNet http://technet.microsoft.com/en-us/windows/dd197314.aspx http://technet.microsoft.com/en-us/library/dd996588.aspx VAMT - Volume Activation Management Tool - Download link http://www.microsoft.com/downloads/details.aspx?FamilyID=ec7156d2-2864-49ee-bfcb-777b898ad582&displaylang=en