How to search in files?

Question

Windows

Tell me a powerful program for searching in files, you can use a commercial expandable supported one, you need it for Windows !!!
I will add a lot to my question, a professional program is needed.

Answer 1

Install Everything . Better than her, mankind has not invented anything in this regard.

Answer 2

Everything

this is a search for files, moreover, according to the database of NTFS itself ... nothing more,
but search by content, there is also "out of the box" - the "Windows Search" service, you just need to add folders for scanning in the service settings

Answer 3

Standard Windows search.
The index file does grow and needs to be cleaned up regularly.

Answer 4

Everything, far.
I use both this and that.