Remove PUP.Optional.FFInjectExt Completely

Remove PUP.Optional.FFInjectExt from Internet Explorer : Take Down PUP.Optional.FFInjectExt

PUP.Optional.FFInjectExt is responsible for causing these errors too!
0x000000CF, 0x80240042 WU_E_UNKNOWN_SERVICE The update service is no longer registered with AU., 0x80240017 WU_E_NOT_APPLICABLE Operation was not performed because there are no applicable updates., 0x00000103, 0x8024400A WU_E_PT_SOAPCLIENT_PARSE Same as SOAPCLIENT_PARSE_ERROR – SOAP client failed to parse the response from the server. , 0x80246002 WU_E_DM_INCORRECTFILEHASH A download manager operation could not be completed because the file digest was not recognized., 0x000000EB, 0x80242010 WU_E_UH_FALLBACKERROR The update handler failed to fall back to the self-contained content., 0x00000059, 0x000000E8, 0x0000000F, 0x80242016 WU_E_UH_POSTREBOOTUNEXPECTEDSTATE The state of the update after its post-reboot operation has completed is unexpected., 0x000000F7, 0x80244027 WU_E_PT_NO_AUTH_PLUGINS_REQUESTED The server returned an empty authentication information list.
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