I also use Search Everything (developer's download site: voidtools.com) and love it because the vast majority of the time I am searching on file name (or part of it) alone. If that's the nature of the search that's being done it's probably the best tool out there and far better than Windows Search has been for some time now when this is the type of search you want to do.
That being said, I do use Windows Search on some occasions because I know I have a file I want to find based on something I know to be contained in it but I cannot for the life of me recall its name well enough to do a file name or partial file name search. Search Everything cannot handle this and is specifically set up not to do so.
Under Windows 10 Cortana takes the place of Windows Search whether you have her personal digital assistant and/or web search results included features turned on or not. I immediately turned those two features off the first day I got Windows 10 and have kept them this way. One has to realize, though, that Windows Search/Cortana does rely on how indexing is set up and much of that depends on the file type as well as the file name. Here are some screen shots I just took of some example searches and bits from how my indexing is set up. Unfortunately I do not know which entry is for file name itself in the indexing list, but clearly it's turned on given that it finds my image file with the name starting with "WAN_DNS" when I search on either just "WAN" (where other things also get found based upon content) or "WAN_DNS" which only returns it.
There are also times when the system index can become corrupted, and that may be the case here. The best thing to do then is to use the "Delete and Rebuild Index" option via the Rebuild button in the main Index Advanced Options tab:
Be aware that rebuilding the index on a system with a huge number of user data files is a non-trivial task that can take hours and hours to complete. You tend to kick this sort of thing off when you're done for the day and don't attempt to do a search again until the next morning (at least if you wish to have accurate results)
Edited by britechguy, 15 December 2017 - 04:30 PM.
Note about rebuilding corrupt index
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
. . . the presumption of innocence, while essential in the legal realm, does not mean the elimination of common sense outside it. The willing suspension of disbelief has its limits, or should.
~ Ruth Marcus, November 10, 2017, in Washington Post article, Bannon is right: It’s no coincidence The Post broke the Moore story