I use Voidtools Everything constantly, have for years. It allows me to find files almost instantaneously. Today I read about another utility that is modeled on Everything but claims to improve on it in several respects - it is called hddb.

Links:

http://betanews.com/2014/04/15/run-super-fast-file-searches-with-hddb/
http://hddb.s3-website-ap-southeast-1.amazonaws.com/index.html
http://voidtools.com/

looks good, BUT ... if it has in the name ultrafast, it should be able to understand commands that are also ultra fast to type: e.g. * should be understood as default, order of the words, default operator AND, etc, like in everything. For example: typing "pdf test name" should do *pdf* AND *test* AND *name*, which unfortunately it does not ...

sorry, i should have clarified the name is "hddb" - the phrase "ultrafast" is my description.

You are right, it doesn't support implicit ANDing of search phrases, e.g. "abc def ghi" should retrieve files with all three strings in the name somewhere. I looked at the help file, it supports only a * wildcard.

So "hddb" gets uninstalled for now. I'll continue with Voidtools Everything for now. Occasionally I rely on Locate32 to do some things that Everything can't (e.g. search by file size, file dates, etc.)