In past versions of Windows I'd go to Start → Search, put the name of the file and search the entire file tree.
In Windows 10 home version 2004 build 19041.746, when I go to Start I can only search for "windows" of system options but not for files; if I run a search on a file's name I am being referred to search it in the web via Bing web browser as if it was web data.
I went to "Windows search settings" and found data about indexing files in my PC but I don't want to index anything; I don't care how much time searching the file tree takes --- I just want to search a particular file in all non excluded folders (under "Find my files" I have changed from classic to enhanced), but where to search for a file in Windows 10?