Apple doesn’t make spotlight for Windows, but the open source alternative Wox is a really good alternative.
Wait a minute!… recommendation of Windows software on an Apple site? What is this?
Of course. If I find something that I like, I recommend it to readers of this site. We all enjoy the tools Apple provides with macOS but some times you just have to use Windows. Music production (ironically) is the main thing I use Windows for. If you work in the corporate world you may be forced to use Windows as well.
What Apple does well is the total integration of software and their hardware. Software like spotlight is just one of those things that I wish we had on Windows machines as well.