My last laptop had a "caps lock" on light. My current laptop does not. The trouble I have with upper and lower case passwords these days, you would not believe. For me, this little tool is a Godsend. I had to uncheck "play sound effect", because it conflicted with the windows "caps lock" sound. (Win 10 - Fall update). I have always felt that the Microsoft Windows OS, should incorporate a feature like this. Thank you Vovsoft, and Majorgeeks.