The on-demand scan feature enables anti-virus analysis of your entire computer or of specified disks, folders or files. The following are the default scan settings:
An on-demand scan of your entire system will include:
an on-demand scan of your entire system will scan RAM used for the running processes and  all objects stored on hard drives, including:

• objects executed at the operating system startup and disk boot sectors;
• archives, packed executable files and self-extracting archives;
• objects linked to or embedded into files (OLE-objects);
    The full computer scan does not include the analysis of mailboxes that are currently in use. 
• an anti-virus scan of a particular disk, folder or file will scan all files located within the selected area, including:
  archives, packed executable files and self-extracting archives;
  objects linked to or embedded into files (OLE-objects);
• dangerous objects are processed after the scan is complete; possible actions will be listed for each object;
• the results of all application actions are documented in reports
  By default, a full on-demand scan of your computer is scheduled every Friday at 8 pm. The full scan status indicator is located in the right section of the Protection tab.
  
   The full scan of your computer is in progress
  If your computer is off at the scheduled time, the scan will not be performed.
   
   You can start a full scan of your computer manually. To do this: 

right-click the   icon in the system tray. When the shortcut menu appears, select Scan My Computer for viruses.

or
switch to the Protection tab in the application window and follow the instructions at
http://support.123visp.co.uk/KB/a94/how-to-scan-your-computer-for-viruses.aspx.