Fileseek -

Users can save their common search criteria as profiles and even sync them between multiple computers.

Searches your hard drive in real-time without hogging your system resources in the background. FileSeek

FileSeek can be easily run as a portable application, making it easy to take between machines on a USB drive. Users can save their common search criteria as

Offers granular control over what specific file extensions or folders to include or exclude during searches. FileSeek

Allows power users to use advanced Regular Expressions (Regex) to refine search queries.