Popular, free anti-malware uility has been updated. Download from Malwarebytes.org.

Recent changes from link above:

Recent Changes
  • (FIXED) Installer uses /updateshowdialog now instead of /runupdate.
  • (FIXED) /runupdate no longer displays program update dialog. Only /updateshowdialog does.
  • (FIXED) Problem removing registry items with (default) values.
  • (FIXED) Minor issues with 32-bit context menu. (64-bit coming soon).
  • (FIXED) Multiple significant issues with protection module.
  • (ADDED) Scanner returns error codes (error levels) for batch file users.
  • (ADDED) Protection module now logs errors and threats to a log file.