Windows Desktop Search is an indexing and searching utility from Microsoft that will help you locate documents, spreadsheets, presentations, email items, contacts, attachments on your computer or connected network.

Access it by pressing the Windows logo key + F.

The program's PDF indexing filter can become available for Windows Desktop Search, letting you index and search your PDF files, including image-only PDF files.

By installation default, the Kofax filter is not enabled, but it can be enabled with a Custom installation. To enable it after installation, go to File > Options > General > Integrations. You can also set preferences for handling PDF pages without a text layer (for instance to use Optical Character Recignition / OCR).

Windows Desktop Search displays a search field with the ability to set search criteria and filters.

For more guidance, please consult Windows Help.