Okay, so you have a server/workstation and your upgrading McAfee on it manually… when installing the app, the services decide to fail to start… you see these(just below) in event viewer, what do you do? Well its pretty easy… just scroll down for the resolution…
Log Name: Application
Event ID: 5004
Task Category: None
Could not contact Filter Driver.
Error = 0×7d1 : The specified driver is invalid.
This issue is caused by a bad value in the registry. Basically, in the old NAI installers, for some unknown reason, the entries in the registry point to the wrong locations, well not wrong, but imcomplete as far as the NAI 8.7i installer is concerned.
The fix? Easy.
Navigate to HKLM\System\CurrentControlSet\Services\mfebopk* then
Navigate to HKLM\System\CurrentControlSet\Services\Mfeapfk* then
Navigate to HKLM\System\CurrentControlSet\Services\Mfeavfk*
* Modify the ImagePath to be the full path to the driver– for example change:
“system32\drivers\mfebopk.sys” to “C:\Windows\System32\Drivers\mfebopk.sys”
The service should now start.