“You can use the Search charm to search for applications, settings and files on your PC. You can also use the Search charm to search for items in the app you have open or in a different app you select.”
also check out some other useful content on Search and Charms:
- Find everything you need with the Search charm
- The charms: Search, Share, Start, Devices, and Settings
- Indexing and Search: Frequently asked questions
- Search for files in File Explorer
Rob