I do not use the Windows search function.
If I am looking for something I think is on the hard drive of the PC I go directly to the file structure myself and look for it.
If I think what I am looking for is on the Web then I start my Internet browser and use the search engine I have it defaulting to.
Also, I made it so that Cortana is dead on my PC.
How did you do that...."Home" does not allow killing cortana.