if you have many servers deployed ,
use group policy to make the change.
if only one server, back up first and make the change.
HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER.
Software\Policies\Microsoft\Edge ( if no Edge, create it).
Then create REG_DWORD type , name it =SuppressUnsupportedOSWarning
1 = enable, 0 = disable.
Setting the policy to Enabled suppresses the warning that appears when Edge is running on an unsupported computer or operating system.