A archz2 Active member Joined May 6, 2019 Posts 33 Friday at 4:39 AM #1 My Acer nitro 5 laptop makes annoying beep sound upon charger switch on/off. How can i disable it ? I couldn't find it in BIOS settings. I am using Windows 10-64 bit (1903 version) The device manager doesn't list any system beep option either that I can switch on or off. I tried the registry method given on the following link. How to disable System Beep in Windows 10/8/7 I set the value to no from yes of this beep key located at HKEY_CURRENT_USER\Control Panel\Sound. Still no resolution. The command prompt method doesn't work either. Please help.