OK, here is an example.
I ran into the all too common Start Button not working issue:
https://www.techmesto.com/fix-start-menu-broken-windows-10-t...
After about three days I found out this was cause by me changing the location of the users Document and Setting folder, using the Location option as provided by Windows 10 itself.
To cut a long story short, DON'T TOUCH the location of that folder as it will break lots of things in Windows 10.
Also Windows 10 puts a new GUI layer over everything, so of course all your years of Windows knowledge is lost.
And here's another example of why that is just stupid.
There is a new GUI to create new user accounts and it is very easy to create new accounts, that is until the button stops working. You click on the button but nothing happens. No message, no nothing.
So when that happens what do you do?
You spend another two days searching, only to find the solution is to bypass the Windows 10 GUI and hit the old Windows layer using this bit of magic:
Open command prompt in Admin mode
control userpassword2
Running that command gives you the old Windows 7 user management dialog.
Finally, Windows 10 seems to have an annoying intermittent habit of not understanding focus and z-order.
You click on a button and nothing happens.
You click on the button again and nothing happens.
You click on the button a third time and this time you notice the task bar flicker, only to find you have three new instances all hiding behind the current application.
That seems to happen a lot in the Settings panels.
