MFE - mfeagent.msi error or missing

You will need to use regedit to find a key that you willeither need to change or delete.
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\ADE3EF6381C0ED8439B49D68 F2287A8A]

The key ADE3EF6381C0ED8439B49D68F2287A8A might not be the same as in yourenvironment, but if you look down through the Products you will see a key withthe MFEAgent.msi in it. You will either need to change the path it's pointingto or go ahead and delete the key.

To resolve all the issues, I deleted this key, killed all the McAfee processesand services then deleted all McAfee folders.

Open windows explorer and delete the followingdirectories:

C:\Documents and Settings\All Users\ApplicationData\McAfee

C:\Documents and Settings\All Users\ApplicationData\Network Associates

C:\Program Files\Mcafee

C:\Program Files\Network Associates

C:\Windows\Temp\*any McAfee folders you see,and VSE850.exe if it’s there



Go to Start, Run, type regedit to open theregistry editor

Browse down to the following paths and deletethe following keys:

(Click on the folder then right click andchoose delete)

HKEY_LOCAL_MACHINE\SOFTWARE\McAfee

HKEY_LOCAL_MACHINE\SOFTWARE\Network Associates



Next, go toHKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root - change the

permissions on root to have full control.Delete any keys you see that start with

LEGACY_MC*

LEGACY_MFE*

LEGACY_NAI*

Change the permissions on Root back to non fullcontrol

Repeat this process for ControlSet002, 003,CurrentControlSet

You should then be able to reinstall the agent and Virusscan successfully.