Buoyed by "Advanced Search Techniques" on windows blog, I thought finding two text files Microsoft.txt & Windows.txt files located in different folders. In the search box, I typed "Microsoft NOT windows". But immediately after typing "Microsoft" the highlight appeared on Microsoft Word, after I completed the next two words "NOT windows" and pressed the Enter key, Word opened up. Similarly I created a dozen files with my name & sirname and used NOT, OR etc, but still no results. Is this Search limited to particular versions or am I doing something wrong? I have Home Premium