So I was trying to enable “use secure DNS” option in settings and this happened (view image below) does anyone know how can I disable the parental controls so I can turn the “use secure DNS” option on?
I don’t know if this is some kind of linkage between the old avast antivirus, as if you had both Avast Secureline VPN and Avast antivirus if there is/was any interaction.
Where did you do the screen capture in your first post, can you not change the slider to enabled ?
However I suspect this could possibly be related to windows10 Parental Control settings.
Have you set any parental controls in Windows ?
Use the Windows key, type Family options > parental controls and see if there is anything there.