I've been playing with the new search charm in windows 8.1. When I search, I only get web results. If I specifically narrow the search to 'files' then I get 'no file results found for your search.' Doing the same search in windows explorer doesn't work if 'This PC' is highlighted, but if I highlight 'documents' then it work correctly. I've rebuilt the search index, and it shows 'indexing complete'. Any suggestions?