For quite a while I have always been annoyed by the search in Windows. I thought it was great that you could use the search to look for text inside a file, just like grep. Of course in usual Microsoft fashion, search all files does not mean to actually search all files.
So finally I became so annoyed with this, I went to see if there was a solution.
I did find the solution and I thought I would share the link
Using the "A word or phrase in the file" search criterion may not work
Hope this helps someone.