Microsoft Excel *.xlsx or PowerPoint *.pptx files in a folder protected by Symantec File Share encryption cannot be opened when McAfee VirusScan Enterprise 8.8 patch 2 or above is also installed.
Windows 7 x64 and above.
McAfee VirusScan 8.8 patch 2 and above.
Symantec File Share Encryption (previously PGP NetShare) 10.0 to 10.4.
Excel *.xlsx and PowerPoint *.pptx files either cannot be opened or the user is informed that the file is corrupt.
The problem was introduced with a design change in McAfee VirusScan Enterprise 8.8 patch 2 where the vendor moved from a "Legacy Filter Driver" to the "Minifilter Driver Model". Symantec File Share Encryption (PGP NetShare) uses the Legacy Filter Driver model, which is no longer supported by McAfee 8.8 patch 2 and above. For further information see the McAfee Knowledge Center.
Upgrade to Encryption Desktop 10.4 MP1 or above.
Alternatively, the following workarounds exist:
Uninstall or disable McAfee VirusScan or install a version of McAfee VirusScan Enterprise prior to 8.8 patch 2.
If the File Share Encryption component is not needed, install the Symantec product without any File Share Encryption components. See article HOWTO84112 for details on installing with the MSI switch.
Decrypt the protected folder. The files that appeared to be corrupt will then open successfully.
Imported Document ID: TECH202537
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