https://docs.microsoft.com/en-us/sysinternals/downloads/procmon Sysinternals Process Monitor - lets you view all processes running in Windows and allows you to terminate them
https://www.nirsoft.net/utils/shexview.html ShellExView Shell Extensions Manager - “ShellExView can be used for solving context-menu problems in Explorer environment. For more information, read the following article: Right-click is slow or weird behavior caused by context menu handlers”
https://ninite.com/ Ninite - Allows you to install apps on computers super fast. Very useful for new computers with no apps installed.