The default search tool from the Microsoft file explorer is an embarassment. Routinely doesn't find files that are there. No positive indication of when the search is actually finished. Wack advanced search syntax that I can't bother to learn. I could go on, but the things I have already listed are more than enough.

The search tool on Windows XP with the animated dog was 100x better than what they have there now. I usually just go with "dir" redirected to a file when I really need to find something now. Yet another example of "upgrades" being actively worse than what came before it.