Just a short post to say I have just there now read a couple of very useful tips about Windows 10 from Ed Bott.
Firstly, I got myself 78 Gigs of C: drive space back ;-0) - Easily, and in not much effort either.
And secondly, I found a way into see / view the details of all my PC entered "usernames and passwords" - for the web and the machine. No more fumbling frustrations, or asking web services to post back ways to remake my password etc., etc..
I suspect that like most of you, I spend too much time coding and doing .NET and related stuff, and not enough time with my OS and other tools.