When I start Minecraft I can't play multiplayer mode. It says: The multiplayer mode is deactivated. Please check the settings of your Microsoft account
Never had…
Do you play normal MC or any Win10 / Bedrock / Education / etc. Version?
Full / purchased account?
Win 10 or java
Ok… I know nothing about the Win10 Minecraft Edition. You have to wait for someone else.
Don't like the version.
Set the multiplayer settings under http://account.xbox.com/settings in the "XBox One / Windows 10 online security" tab.
In the case of a child account, this must be done by the main account.