An application compatibility update is available when you upgrade from Windows 7 to Windows 8. You are offered the option to preserve existing applications, settings, and personal data during the upgrade. This update makes sure that only compatible applications are migrated.
After you upgrade from Windows 7 to Windows 8, some migrated applications may not run correctly because they experience compatibility issues.
This problem occurs because the migration settings for some applications are missing. Therefore, certain applications that are incompatible with Windows 8 are incorrectly migrated.