Here is a great collection of windows tools and utilities from Mark Russinovich. My personal favorites include disk2vhd.exe, procexp.exe and tcpview.exe.

You can explore this collection directly here is raw IIS file server format:
https://live.sysinternals.com/

A single download of the near complete collection in single zip file:
https://live.sysinternals.com/files/SysinternalsSuite.zip

Many of the tools have been around for over 25 years. Now they mostly buried away on the Microsoft website after the acquisition. https://learn.microsoft.com/en-us/sysinternals/