If you use utilities to fix Windows computers, this repository by SysInternals should be in your arsenal. Mark Russinovich started making Windows tools many moons ago and now his site is integrated into Microsoft's site and I believe he is a Fellow for Microsoft. His Process Explorer and Autoruns are just two quick examples of no frills get the job done technical tools.
Windows Sysinternals: Documentation, downloads and additional resources:
'via Blog this'