When the Normal.mxt is corrupt, 'Error running VBA code: User Interrupt' is returned

Error Message

The following error occurs when using the Field Calculator:

"Error running VBA code: User Interrupt".

Cause

The Normal.mxt is possibly corrupted.

Solution or Workaround

• Shut down ArcGIS and delete the Normal.mxt.
  Using Windows Explorer, navigate to the Normal.mxt at:
  
  

  Code:
  C:\Documents and Settings\username\Application Data \ESRI\ArcMap\Templates\Normal.mxt

  
  
• If this does not resolve the issue, delete the ESRI folder located at:
  
  

  Code:
  C:\Documents and Settings\username\Application Data\ESRI