I used WinKey + S very much on Windows 8.1. Now when I installed Windows 10 it seems to be a problem with the search indexer. It can't find anything but some 'settings' items.
Things i've tried:
- Rebuilding the indexer
- Running the troubleshooter
- Checking the 'allow files to be indexed' on my both partitions
- Restarting the Windows Indexer Service
- Deleting the 'C:\ProgramData\Microsoft\Search' folder
- Cortana is not available on my region