Error Message while rebooting

After installing (MCAFEE Virus Scan) in one of the PC with Windows NT as an OS, I start getting an error message after rebooting the PC which says( Could not should exclude send data to VxD)!!!! And If I uninstall MCAFEE the message won’t appear.. Idon’t know if it is something to do with MCAFEE or not..What shell I do, because I require a Virus Scan to be run in the PC..??