Information
Antivirus signature files are updated almost daily by antivirus software vendors. These files are made available to antivirus clients as they are published. Keeping virus signature files as current as possible is vital to the security of any system. The antivirus software product must be configured to receive those updates automatically in order to afford the expected protection.
Solution
Access the local VirusScan console by clicking Start->All Programs->McAfee->VirusScan Console.
Under the Task column, find the AutoUpdate option, right-click, and choose Properties.
Click the Schedule button.
On the Task tab, select 'Enable (scheduled task runs at specified time)'.
On the Schedule tab, the 'Run task:' option must be configured with Daily.
Click OK to save.