As it turned out, in the settings of your second Curtains program, which is installed on my computer, the Apply style to the Start button is enabled by default. I turned it off, and now the Start button changes. The matter is closed. Thank you.
Hello. Who can tell why the Start button does not change on Windows 10? Thanks for the tip. Stardock Start11 1.2
And yet. This sound is there. If you turn off the Stardock Curtains Service and restart your computer, there is no sound. And that means the reason in Curtains
Hello. After installing Curtains, when Windows starts (reboots), the system sound is played - Windows Background.wav. This is normal? Thanks for the answer.