Some time ago my Windows 10 started periodically make a strange sound without any visible reason.
Like notification sound or something similar. This was strange. Actually, this was very strange since configured sounds theme was "no sound".
Some discussions in the Internet (yes, I'm not the only one with similar problem) made me thinking that Windows 10 lost and reconnected some plug & play devices. And this caused the sounds.
After I tried this and that I went to advanced power settings and disable turn off everything when notebook connected to a power line.
Afterwards I did not hear this strange sounds for 2 week already.
Windows 10 is a nice OS, but I had so strange issues (this one, broken start button) with it already.